Malachi 3:6-7
God Does Not Change
6 “I the Lord do not change. So you, the descendants of Jacob, are not destroyed. 7 Ever since the time of your ancestors you have turned away from my decrees and have not kept them. Return to me, and I will return to you,” says the Lord Almighty.
Jonah 4:2
God is Gracious and Compassionate
2 He prayed to the Lord, “Isn’t this what I said, Lord, when I was still at home? That is what I tried to forestall by fleeing to Tarshish. I knew that you are a gracious and compassionate God, slow to anger and abounding in love, a God who relents from sending calamity.
Hebrews 13:8
Jesus Does Not Change
8 Jesus Christ is the same yesterday and today and forever.
I have read where some atheists say that God is a vindictive God in the Old Testament...But in the New Testament He changes and is a Loving God...But the Trinity does not change, and God and Jesus, therefore, do not change...The Living God is Absolutely Moral in the Old Testament and He is Absolutely Moral in the New Testament...To be Perfect and be the Absolute One, He cannot change...To change Perfection would mean to move something away from Perfection or to change something that is Perfect -to something that is more perfect, and that does not make sense...Changing Perfection leads to imperfection...So once Perfect, always Perfect...
C. S. Lewis describes the Old Testament as a "hammering process."...God had to use justice and discipline in the learning process about Him (so they would know more about Him)...Lewis states that God selected one people and spent several centuries hammering into their heads the sort of God He was—that there was only one of Him and that He cared about right conduct...Those people were the Jews and the Old Testament is an account of the hammering process...
God absolutely wants His people and followers to live in accordance with His character...The right conduct is that God is Absolutely Moral...God sets the standard for justice...It is a perfect justice...That is the bar He sets...It seems the Old Testament Prophets understood this much better than today's modern atheist and non-believer...The hammering process is the discipline that God laid out in teaching His people that there was only One of Him and that He is a Moral God, Perfectly Moral...He has these attributes and that is who He is...Man may not always like that God is Perfectly Moral, because we are not that way...And discipline or hammering is not always a "fun thing."...Sometimes it takes years of discipline or hammering to get things through our stiff necks...And learning about things like justice and morality can be painful (in many ways...This is because man is imperfect and sins...Jonah was an Old Testament Prophet...Jonah, who ran away from God, knew how compassionate He is...Jonah did not like the Ninevites, and did not want to have a revival with them and ask them to repent...Jonah knew how gracious and compassionate God is...Jonah says our LORD is slow to anger and abounding in love...He is a God, who relents from sending calamity to people...The Prophets knew that a Perfectly Moral and Perfectly Just God would have to discipline the undisciplined...How else would we learn?...
The standard of justice and morality the God has -stays the same yesterday, today, and tomorrow...Got sent Jesus to show us that Perfectly Moral behavior could happen on earth...Jesus, who has been with God from the beginning (John 1:2)...So Jesus has always been this way...God has to be Perfectly Moral and Perfectly Just...How else can He be?...No man can fault His Judgment because of His Perfection...Could and should man control the number of days his friends and enemies are on the earth to live?...How could and would that be?...The wise men and the prophets knew this...They knew if there was such a thing as Perfect Justice -although we as man do not like it, that is part of the learning and the hammering process in learning about Perfection...The Prophets knew humanity not only has the Perfect One, but needs a Perfect Truth, a Perfect Justice, and One Perfectly Moral...With God and His Son, we have that and the people of Jesus' time got to see these perfections lived out...And as we follow God and Jesus in the Old Testament and New Testament, we should expect our Father to find faults in our sins...And in the end, when we pass away, He has made the Perfect Judgement for everyone, because of who He is...There has to be a standard a Way for Truth, for Morality, for Justice, and for Life and He has show us these things through His Son...