Paul didn't set us free from any Law. Jesus set the Jews free from Torah. Torah was the laws of the old covenant. Jesus brought forth the new and better covenant at Calvary. He ratified it with His own blood thus ending the Mosiac covenant with all its rituals including the ritual weekly Sabbath.
In Psalms 119:142, the Torah is truth, so you post is opposed to following truth, and Jesus did not set us free from truth, but just the opposite, truth is what sets us free from bondage to sin (John 8:31-36). In Deuteronomy 13:1-5, the way that God instructed His people to determine that someone is a false prophet who is not speaking for Him is if they taught against following the Torah, so if Jesus had tried to do what you suggest, then those who reject him as being a false prophet would be correctly acting in accordance with what God has instructed His people to do. However, in Titus 2:14, it does not say that Jesus gave himself to free us from God's law, but in order to free us from all lawlessness, so the way to believe in what Jesus accomplished at Calvary is by becoming zealous for doing good works in obedience to the Torah (Acts 21:20), while the way to reject what Jesus accomplished at Torah is by you promoting the lawlessness that he gave himself to redeem us from. Jesus spent his ministry teaching his followers how to obey the Torah by word and by example, and he did not establish the New Covenant for the purpose of undermining everything that he taught and accomplished through the cross, but rather the New Covenant still involves following the Torah (Jeremiah 31:33), which includes the command to keep the Sabbath holy.
Certainly, the Old Testament was God's word to the Israelites. The New Testament is God's word to all mankind. It is called the new covenant. The old way of the Jews has ended thus Paul could rightly tell us in Eph2: 14 For he himself is our peace, who has made the two groups one and has destroyed the barrier, the dividing wall of hostility, 15 by setting aside in his flesh the law with its commands and regulations.
You and all of the other forum participants can deny Eph 2:15, but your denials only confuse the fact that we are living under the new covenant.
In Psalms 119:160, all of God's righteous laws are eternal, however, Ephesians 2:14-15 is referring to a law that is not eternal, therefore it is not referring to any of God's laws. In Ephesians 2:10, we are new creations in Christ to do good works, so it wouldn't make sense to interpret a few verses later as saying that Jesus ended God's instructions for how to equip us to do every good work, especially because God's instructions for how to do good works are not a dividing wall of hostility. God did not make any mistakes when He gave His law, so He had no need to send Jesus to abolish His own law, especially when He instructed His people not to listen to anyone who speaks against obeying it even if they perform signs and wonders. Instructions for how to act in accordance with God's nature can't be ended without first ending God.
The Greek word "dogma" is used five times in the Bible, twice in regard to the decrees of Caesar (Luke 2:1, Acts 17:7), and once, in regard to the decree of the Jerusalem Council (Acts 16:4), so you need to give justification for why it should be interpreted in Ephesians 2:15 as referring to all of the Law of God, and justification for why Paul should interpreted in a way that makes him out to be a false prophet and then justification for why we should follow a false prophet instead of God. The reality is that Paul was a servant of God who never spoke against anyone obeying Him and your post should be rejected as being in opposition to truth.
