Moses received from God all of the law and the commandments and Moses made it all known to the Israelites. Now the commands were written down, in books, and in stone, and spoken unto the Israelites on many occasions. (see Deuteronomy 27:8,Deuteronomy 31:9-13, Deuteronomy 31:24-26, Exodus 24:7).
“For this commandment which I command thee this day, it is not hidden from thee, neither is it far off. It is not in heaven, that thou shouldest say, Who shall go up for us to heaven, and bring it unto us, that we may hear it, and do it? Neither is it beyond the sea, that thou shouldest say, Who shall go over the sea for us, and bring it unto us, that we may hear it, and do it? But the word is very nigh unto thee, in thy mouth, and in thy heart, that thou mayest do it.” -Deuteronomy 30:11-14
We cannot say “I did not know.” We cannot pretend to seek what God wants from us as if we do not know.
The scriptures are plain and clear. We have Bibles to read and yet we don’t know what God has commanded because we do not read our Bibles.
Christ has taught us. The Apostles have taught us. Their words are written for us to read, for us to believe, for us to obey.
As the Law of Moses was written as a witness against the Israelites, so are the words of Christ and the Apostles and the Prophets written as a witness against us (Deuteronomy 31:24-30, John 1:7-23, John 3:11, John 15:27, John 18:37, Acts 1:20-26, Acts 4:33, Acts 23:11, Revelation 20:4).
It is as if the words of Christ and the apostles are crying out to us. "You profess to be a Christian? THEN KNOW MY WORDS" But Christ and the Apostles are not only a witness against those who profess to know him. They are also a witness against all men. For "he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God." (see John 3:18)
“For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who hold the truth in unrighteousness; Because that which may be known of God is manifest in them; for God hath shewed it unto them. For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, even his eternal power and Godhead; so that they are without excuse: Because that, when they knew God, they glorified him not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkened. Professing themselves to be wise, they became fools” - Romans 1:18-22
“God is greatly to be feared in the assembly of the saints, and to be had in reverence of all them that are about him.” - Psalm 89:7
“Thou hast a mighty arm: strong is thy hand, and high is thy right hand. Justice and judgment are the habitation of thy throne: mercy and truth shall go before thy face. Blessed is the people that know the joyful sound: they shall walk, O LORD, in the light of thy countenance. In thy name shall they rejoice all the day: and in thy righteousness shall they be exalted.” - Psalm 89:13-16
“For the LORD is our defence; and the Holy One of Israel is our king.” - Psalm 89:18