Wiki: https://en.wikipedia.org/wiki/Jesus_Prayer

"The emphasis is on the meaning, not on the mere utterance of certain sounds."

Most Sacred Heart of Jesus; have mercy on us (3 times)

Lord Jesus Christ, Son of God, have mercy on us (3 times)

"Lord, have mercy." [page 50 Source]

Latin

Pronunciation and song

Domine Iesu Christe, Fili Dei, miserere mei.

Lord Jesus Christ, Son of God, have mercy on me. 

Biblical Greek

From hesychasm [Reading here]

Video tutorial Eng, Greek, Latin https://youtu.be/GPxojyJvmA8?t=112

Source: https://praylingo.com/jesus-prayer/greek/

https://chanttherosary.com/prayers/jesus-prayer/

Κύριε Ἰησοῦ Χριστέ,

Kýrie Iisoú Christé,

Lord Jesus Christ,

Υἱέ τοῦ Θεοῦ,

Yie tou Theoú,

Son of God,

ἐλέησόν με τὸν ἁμαρτωλόν.

eléison me ton amartolón.

have mercy on me, a sinner.

Here is a shorter form:

https://www.youtube.com/watch?v=ypo7lUHP1XM

Explained source: https://www.youtube.com/watch?v=GPxojyJvmA8

The Jesus Prayer, also known as The Prayer, is a short formulaic prayer esteemed and advocated especially within the Eastern churches: "Lord Jesus Christ, Son of God, have mercy on me (a sinner)." The prayer has been widely taught and discussed throughout the history of the Orthodox Church. The ancient and original form did not include the words "a sinner", which were added later. 

It is often repeated continually as a part of personal ascetic practice, its use being an integral part of the eremitic tradition of prayer known as hesychasm. The prayer is particularly esteemed by the spiritual fathers of this tradition as a method of cleaning and opening up the mind and after this the heart (kardia) and bringing about firstly the Prayer of the Mind or more correctly the Noetic Prayer (Νοερά Προσευχή) and after this the Prayer of the Heart (Καρδιακή Προσευχή). The Prayer of the Heart is considered to be the Unceasing Prayer that the Apostle Paul advocates in the New Testament. Theophan the Recluse regarded the Jesus Prayer stronger than all other prayers by virtue of the power of the Holy Name of Jesus. Though identified more with Eastern Christianity, the prayer is found in Western Christianity in the catechism of Catholic Church. It also is used in conjunction with the recent innovation of Anglican Prayer Beads.

The prayer "have mercy on me" is not meant to be a submissive pleading in front of a revengeful God, but refers to the manifold situations where people asked Christ to do something for them, to turn towards them, to grant them his attention and divine action. The prayer therefore asks Christ to work on and in the praying person, bringing God to them and helping them in their inner life.

History of the Prayer

Early Christians in the East adapted the Jesus Prayer from a passage in the Parable of the Pharisee and the Publican, which Jesus told in Luke 18:9-14. The parable appears below in Greek and English, with the pertinent words shown in red.

9 Εἶπεν δὲ καὶ πρός τινας τοὺς πεποιθότας ἐφ’ ἑαυτοῖς ὅτι εἰσὶν δίκαιοι καὶ ἐξουθενοῦντας τοὺς λοιποὺς τὴν παραβολὴν ταύτην·

10 ἄνθρωποι δύο ἀνέβησαν εἰς τὸ ἱερὸν προσεύξασθαι [ὁ] εἷς Φαρισαῖος καὶ ὁ ἕτερος τελώνης.

11 ὁ Φαρισαῖος σταθεὶς (ταῦτα) πρὸς ἑαυτὸν [ταῦτα] προσηύχετο· ὁ θεός, εὐχαριστῶ σοι ὅτι οὐκ εἰμὶ ὥσπερ οἱ λοιποὶ τῶν ἀνθρώπων, ἅρπαγες, ἄδικοι, μοιχοί, ἢ καὶ ὡς οὗτος ὁ τελώνης·

12 νηστεύω δὶς τοῦ σαββάτου, ἀποδεκατεύω / ἀποδεκατῶ πάντα ὅσα κτῶμαι.

13 ὁ δὲ τελώνης μακρόθεν ἑστὼς οὐκ ἤθελεν οὐδὲ τοὺς ὀφθαλμοὺς ἐπᾶραι εἰς τὸν οὐρανόν, ἀλλ’ ἔτυπτεν τὸ στῆθος ἑαυτοῦ / αὐτοῦ λέγων· ὁ θεός ἱλάσθητί μοι τῷ ἁμαρτωλῷ.

14 λέγω ὑμῖν, κατέβη οὗτος δεδικαιωμένος εἰς τὸν οἶκον αὐτοῦ παρ’ ἐκεῖνον· ὅτι πᾶς ὁ ὑψῶν ἑαυτὸν ταπεινωθήσεται, ὁ δὲ ταπεινῶν ἑαυτὸν ὑψωθήσεται.

ΚΑΤΑ ΛΟΥΚΑΝ 18:9-14

[9] And he spake this parable unto certain which trusted in themselves that they were righteous, and despised others:

[10] Two men went up into the temple to pray; the one a Pharisee, and the other a publican.

[11] The Pharisee stood and prayed thus with himself, God, I thank thee, that I am not as other men are, extortioners, unjust, adulterers, or even as this publican.

[12] I fast twice in the week, I give tithes of all that I possess.

[13] And the publican, standing afar off, would not lift up so much as his eyes unto heaven, but smote upon his breast, saying, God be merciful to me a sinner.

[14] I tell you, this man went down to his house justified rather than the other: for every one that exalteth himself shall be abased; and he that humbleth himself shall be exalted.

(Transliteration from The Interlinear Greek-English New Testament by Jay P. Green, Sr.:)

Our Father who is in Heaven,

let be sanctified Your name.

Let Your kingdom come;

let Your will be done,

as it is in Heaven,

also on Earth.

Give us today our daily bread (manna? / "daily learning from [the word of] God") ,

and forgive us our debts as we also forgive our debtors.

And do not lead us into temptations,

but deliver us from evil;

for Yours is the Kingdom,

and the power,

and glory to forever.

Amen

The older prayer:

[source: https://isthatinthebible.wordpress.com/2015/10/21/the-development-of-the-lords-prayer/]

I. Father, hallowed be your name.

II. Your holy spirit come upon us and cleanse us.

III. Give us each day our daily bread  (manna? / "daily learning from [the word of] God") .

IV. And forgive us our sins, for we ourselves forgive everyone indebted to us.

V. And do not lead us into temptation.

Source: https://noohra.com/the-lords-prayer/

Evidence that aramaic is original IMPORTANT: https://aramaicherald.blogspot.com/2011/03/lords-prayer-in-original-aramaic-by.html

Our Father who is everywhere

Your name is sacred.

Your kingdom is come.

Your will is throughout the earth

Even as it is throughout the universe

You give us our needful bread  (manna? / "daily learning from [the word of] God") from day to day,

And you forgive us our offenses

Even as we forgive our offenders.

And you let us not enter into materialism.

But you separate us from error.

Because yours are the kingdom, the power and the song and praise.

From all ages, throughout all ages.

Amen

THE ANCIENT ARAMAIC PRAYER OF JESUS – “The Lord’s Prayer”

by Rocco A. Errico

Source: http://holytrinityny.org/docs/The%20Ancient%20Aramaic%20Prayer%20of%20Jesus.pdf

Our Father who [is] throughout the universe.

Let your name be set apart.

Come your kingdom (counsel).

Let your desire be, as in the universe, also on the earth.

Give us bread for our necessities /  (manna? / "daily learning from God") this day.

And free us from our offenses, as also we have freed our offenders.

And do not let us enter our temptation (worldliness), but set us free from error.

For belongs to you the kingdom, power, and song, from ages to ages.

My interpretation

Our Heavenly Father (Aramaic: Alaha (source2)/  Hebrew: AVINU SHE-BA-SHAMAYIM), who is everywhere

Let your name be set apart (sanctified).

Let your holy spirit come upon us and cleanse us.

Let Your kingdom (counsel / heavenly court?) come;

Let Your will be done, as it is in Heaven, throughout the earth

Even as it is throughout the universe

You give us our needful bread (manna? / "daily learning from God") from day to day,

And forgive us our sins/offenses, for we ourselves forgive everyone indebted to us.

And do not let us enter our temptation (worldliness), but set us free from error.

but deliver us from evil;

For belongs to you the kingdom, power, and song, from ages to ages.

and glory to forever.

Amen

Greek version translated

via https://openl.io/ you can use https://play.ht/text-to-speech/greek/ for text to speech

Οὐράνιε Πατήρ (Ἀββά), ἁγιασθήτω τὸ ὄνομά σου. Ἐλθέτω τὸ ἅγιον πνεῦμά σου ἐφ' ἡμᾶς καὶ καθάρισον ἡμᾶς. Ἐλθέτω ἡ βασιλεία σου· γενηθήτω τὸ θέλημά σου, ὡς ἐν οὐρανῷ, καὶ ἐπὶ τῆς γῆς. Δὸς ἡμῖν τὸν ἄρτον ἡμῶν τὸν ἐπιούσιον. Καὶ ἄφες ἡμῖν τὰ ὀφειλήματα ἡμῶν, καθὼς καὶ ἡμεῖς ἀφήκαμεν τοῖς ὀφειλέταις ἡμῶν. Καὶ μὴ εἰσάγῃς ἡμᾶς εἰς πειρασμόν, ἀλλὰ ῥῦσαι ἡμᾶς ἀπὸ τοῦ πονηροῦ· ὅτι σὴ ἐστὶν ἡ βασιλεία, καὶ ἡ δύναμις, καὶ ἡ δόξα εἰς τοὺς αἰῶνας. Ἀμήν.

Here is a prayer video with a priest

1 John 1:9 - If we confess our sins, he is faithful and just to forgive us our sins and to cleanse us from all unrighteousness.

Prayer

Lord God forgive me

for all my sins for all my iniquities for all the bad things that I have done

for all the bad thoughts that I have had throughout my life for all the faults

that I have committed against my brothers and my sisters against myself I beg you Holy Father that you forgive

me all those sins from the bottom of my heart and that you give me the opportunity to enter into and live in

your glory let me begin to live with you Lord and I open the doors of my heart and please enter me to live in me and to

dwell with me I accept you and I promise to follow you for the rest of my life in

the name of Jesus Christ

Amen

Some Catholics recommend attending mass and ask for a priest to confess to. "Go to confession"

Trauma

List all the traumas you experienced in your life

List all the sins that were committed against you or near you

You can go a step further and find scripture about what the bible says about these sins / traumas

Ephesians 4:32 - Be kind to one another, tenderhearted, forgiving one another, as God in Christ forgave you.

Mark 11:25 - And whenever you stand praying, forgive, if you have anything against anyone, so that your Father also who is in heaven may forgive you your trespasses.”

Make a literal numbered list of names of all the people /animals in your life that have hurt you significantly, disappointed you, abandoned you, rejected you from childhood to present, dead or alive, traumas them sinning against you, .

Then Pray with Mathew 5:44 in mind fervently and sincerely (Mt. 6:14-15, Col. 3:12-13) =  But I tell you, love your enemies and pray for those who persecute you, over each of them exactly as the verse is written.

Repent to God for holding bad feelings and negative emotions toward them.

You must not only forgive them but release the ought (negative emotions/programming) in your soul for them. You must also forgive yourself. Realize that Jesus already knows what you've done

Here is god's attitude about your sins

Source

1. The Shame page can help start you off on getting ideas on what to forgive and even forgive yourself

Don't forget to forgive yourself

God’s Omnipresence and Omniscience.

To the Chief Musician. A Psalm of David.

139 

O Lord, you have searched me [thoroughly] and have known me.

2  You know when I sit down and when I rise up [my entire life, everything I do];
You understand my thought from afar.

3  You scrutinize my path and my lying down,
And You are intimately acquainted with all my ways.

4  Even before there is a word on my tongue [still unspoken],
Behold, O Lord, You know it all.

5  You have enclosed me behind and before,
And [You have] placed Your hand upon me.

6  Such [infinite] knowledge is too wonderful for me;
It is too high [above me], I cannot reach it.

7  Where can I go from Your Spirit?
Or where can I flee from Your presence?

8  If I ascend to heaven, You are there;
If I make my bed in Sheol (the nether world, the place of the dead), behold, You are there.

9  If I take the wings of the dawn,
If I dwell in the remotest part of the sea,

10  Even there Your hand will lead me,
And Your right hand will take hold of me.

11  If I say, “Surely the darkness will cover me,
And the night will be the only light around me,”
12  Even the darkness is not dark to You and conceals nothing from You,
But the night shines as bright as the day;
Darkness and light are alike to You.

13  For You formed my innermost parts;
You knit me [together] in my mother’s womb.

14  I will give thanks and praise to You, for I am fearfully and wonderfully made;
Wonderful are Your works,
And my soul knows it very well.

15  My frame was not hidden from You,
When I was being formed in secret,
And intricately and skillfully formed [as if embroidered with many colors] in the depths of the earth.

16  Your eyes have seen my unformed substance;
And in Your book were all written
The days that were appointed for me,
When as yet there was not one of them [even taking shape].

17  How precious also are Your thoughts to me, O God!
How vast is the sum of them!
18  If I could count them, they would outnumber the sand.
When I awake, I am still with You.

19 b[a]O that You would kill the wicked, O God;
Go away from me, therefore, men of bloodshed.

20  For they speak against You wickedly,
Your enemies take Your name in vain.

21  Do I not hate those who hate You, O Lord?
And do I not loathe those who rise up against You?

22  I hate them with perfect and utmost hatred;
They have become my enemies.

23 vSearch me [thoroughly], O God, and know my heart;
Test me and know my anxious thoughts;

24  And see if there is any wicked or hurtful way in me,
And lead me in the everlasting way.

Footnotes

1. Psalm 139:19 In the first eighteen verses of this psalm, the psalmist acknowledges that God knows everything that the psalmist ever does, no matter when or where he does it. Although God’s vast knowledge of an individual’s deeds can be reassuring for the righteous, it should be frightening for the wicked. In verses 19-24, the psalmist distances himself from the wicked and asks God to help him live in such a way that pleases God.

Isaiah 1:18

Amplified Bible

“Let Us Reason”

18  “Come now, and let us reason together,”

Says the Lord.

“[a]Though your sins are like scarlet,

They shall be as white as snow;

Though they are red like crimson,

They shall be like wool.

You were paid for with a price by the God of the universe, heaven, and Earth

He died for your sins as God himself / Son of God, who is the creator of the universe, heaven, and Earth

Please go to Healing