Do you suppose to "know sin" is inclusive of the idea of knowing a woman? What I mean is, to engage in something, as an experience. The law increased sin. What was not sin prior to the law of Moses, became sin for the circumcision.
There is a difference between having head knowledge of which actions are sinful and having experiential knowledge of those things. Paul sad that God's law is good and that he wanted to do good, but that there was a law of sin that was working within his members to cause him not to do the good that he wanted to do, so it is the law of sin that causes sin to increase. In Romans 7:7, God's law is not sinful, so it does not cause sin to increase, but rather it is how we know what sin is, and when our sin is revealed, then that leads us to repent and causes sin to decrease. For example, there there is nothing inherent to the command against coveting that causes coveting to increase, but rather that command leads us to refrain from coveting and causes coveting to decrease. The issue is that there is something within us that that acts through the command against coveting that causes all sorts of covetousness, which is what causes sin to increase
In Romans 5:13, sin was in the world before the law was given, so there were no things that were to sin before the law was given that became sin after it was given, but rather the Mosaic Law revealed what has always been and will always be sin.
Certainly, the circumcision was judged by Moses/Levitical law. Moses law was not for all men everywhere. It set Israel apart. It also increased sin.
Noachide law is also God's law. Abraham's law is also God's law, as is Moses law, God's law. In covenants
I have heard it often said by people who focus on the Mosaic covenant. Christians only read the last part of the Scripture. I think a valid point, pretty much true historically (not so much today). But isn't it also true of those who make Moses law, the only law and scripture, and covenant, leaving out the first part which is found in the text of Genesis?
There are many verses that describe the Mosaic Law as being God's way, such as Deuteronomy 10:12-13, Isaiah 2:2-3, Joshua 22:5, 1 Kings 2:1-3, Psalms 103:7, and so forth. In Genesis 18:19, God knew Abraham that he would teach his children and those of his household to walk in His way by doing righteousness and justice that the Lord may bring to Abraham all that he has promised, namely, in Genesis 26:4-5, God will multiply Abraham's children as the stars in the heaven, to his children He will give all of these lands, and through his children all of the nations of the earth will be blessed because Abraham heard God's voice and guarded His charge, His commandments, His statutes, and His laws. In Deuteronomy 30:16, if they love God with all of their heart by walking in His way by guarding His commandments, statutes, and laws, then they will live and multiply and God will bless them in the land that they go to possess. So all of the promises were made to Abraham and brought about because Abraham walked in God's way in obedience to His law, he taught his children how to do that, and because the children of Abraham did that.
In Exodus 33:13, Moses wanted God to be gracious to him by teaching him His way that he might know Him and Israel too, and in Matthew 7:23, Jesus said that he would tell those who are workers of lawlessness to depart from him because he never knew them, so knowing God and Jesus is the goal of the Mosaic Law, which is the only way to eternal life (John 17:3). The Mosaic Law is the way (Psalms 119:1-3), the truth (Psalms 119:142), and the life (Deuteronomy 32:47), and the way to know the Father, and Jesus embodied the way, the truth, and the life, and the way to know the Father because he set a sinless example of how to walk in obedience to it (John 14:6-7), so Abraham and the the children of Abraham walked in God's way in obedience to the Mosaic Law, and all who consider themselves to be followers of The Way as children of God through faith in Christ and children of Abrahams as heirs of the promise should also walk in God's way. In John 8:39, Jesus said that if they were children of Abraham, then they would be doing the same works that he did, so again there is a connection between the works that they should be doing in obedience to the Mosaic Law and the works that Abraham did.
In Matthew 4:15-23, Jesus began his ministry with the Gospel message to repent for the Kingdom of God is at hand, which was a light to the Gentiles, and the Mosaic Law was how his audience knew what sin is (Romans 3:20), so repenting from our disobedience to it is an integral part of the Gospel message, which he prophesied would be proclaimed to all nations (Matthew 24:12-14), and which he commissions his disciples to teach to the nations (Matthew 28:!6-20). This is also the Gospel of the Kingdom that was made known in advance to Abraham, which he spread to those in Haran in accordance with the promise (Genesis 12:1-5). The Mosaic Law is how the children of Abraham knew how to be blessed by walking in God's way, so the way to inherit the promise through faith of being a blessing to the nations is by blessing the nations by turning them from their wickedness and teaching them to walk in God's way, which has its fulfillment in Jesus who was sent to bless us by turning us from our wickedness (Acts 3:25-26).
In other words, God's goal is to bless the world and His game plan is to teach the children of Abraham how to live blessed lives so that they would by teaching them to repent from their wickedness and how to walk in His way so that they would then be equipped to go out into the world and bless the nations by teaching them to repent from their wickedness and how to walk in God's way. This is how people are blessed and the children of Abraham are multiplied in accordance with the promise and how the Kingdom of God is spread in accordance with the Gospel. So when people try to say that this is only for Israel, then they are missing the whole point of spreading the Gospel to the nations. Israel was not set apart for the sake of being set apart, but for the sake of being a light and a blessing to the nations.