Hundreds of commandments can be found throughout the Old Testament that, when used collectively, make up the "Old Covenant Law." But one group of commandments, written in stone by God, were separate, distinct, and above all others.
These, known as the Ten Commandments, are found in Exodus 20:1-17 and Deut 5:6-22. God gave them to the Children of Israel at Mount Sinai after He had delivered them out of slavery to Egypt.
There needs to be more clarity regarding what sin is under the New Testament.
With the Advent of the New Testament Church, hundreds of laws and requirements were discontinued (Acts 15:1-21).
However, the moral laws that reveal what God considers to be sin, and represent the lifestyle He wants His people to follow, as confirmed here by Jesus, are still in effect.
Jesus said, "You know the commandments: 'Do not murder, do not commit adultery, do not steal, do not give false testimony, do not defraud, honor your father and mother," (Mark 10:16) (also in Luke 18:20).
And the Apostle Paul, "What shall we say, then? Is the law sinful? Certainly not! Nevertheless, I would not have known what sin was had it not been for the law. For I would not have known what coveting really was if the law had not said, "You shall not covet" (Rom 7:7).
What was sin in the Old Testament is sin in the New Testament. For instance, the sins of murder and adultery carried the penalty of death in the Old Testament and the same penalty in the New Testament. The difference is in the way sins are forgiven.
Under the New Testament, sins were Atoned for and forgiven through Jesus' death on the cross, but we must first accept Him as our Savior; otherwise, we are still under the condemnation of the Old Testament Law and will die in our sins and go to hell.
We obey God's Moral Laws because of our love, respect, and adoration for Jesus, not as an attempt to earn our way to Heaven, because under the New Testament, that will no longer work.
"And God spoke all these words, saying: 'I am the LORD your God, who brought you out of Egypt, out of the land of slavery"
1: 'You shall have no other gods before Me.'
2: 'You shall not make for yourself a carved image--any likeness of anything that is in heaven above, or that is in the earth beneath, or that is in the water under the earth.'
3: 'You shall not take the name of the LORD your God in vain.'
4: 'Remember the Sabbath day, to keep it holy.'
5: 'Honor your father and your mother.'
6: 'You shall not murder.'
7:'You shall not commit adultery.'
8: 'You shall not steal.'
9: 'You shall not bear false witness against your neighbor.'
10: 'You shall not covet your neighbor's house; you shall not covet your neighbor's wife, nor his male servant, nor his female servant, nor his ox, nor his donkey, nor anything that is your neighbor's.'