I can get a little fixated when people dodge and weave.
Paul's prior knowledge remained intact but his perspective had drastically and completely changed from his former beliefs of his keeping the Hebrew laws in order to gain acceptance with God.
Thank you. THAT is the point. St Paul and all of the Apostles taught from the perspective of their Jewish tradition. Jesus didn't abolish the Law, He fulfilled it. It's not that it wasn't holy and of God, just that it was fulfilled and it's strictures were no longer required. Too many people throw the baby out with the bathwater. There is a Jewish history. It is not evil. It is the parent to our own faith. What remained was the essence of the Law which is love of God and man. St Paul was not ashamed to proclaim himself a Pharisee because of his belief in the resurrection. We may no longer be under the strictures of the Mosaic Law... but that doesn't mean it wasn't still instructive for our faith in God and His ways.
Matthew 5:17-21 (NASB Strong’s Bible Text)
17 Do not think that I came to abolish the Law or the Prophets; I did not come to abolish but to fulfill. 18 For truly I say to you, until heaven and earth pass away, not the smallest letter or stroke shall pass from the Law until all is accomplished. 19 Whoever then annuls one of the least of these commandments, and teaches others to do the same, shall be called least in the kingdom of heaven; but whoever keeps and teaches them, he shall be called great in the kingdom of heaven.
20 For I say to you that unless your righteousness surpasses that of the scribes and Pharisees, you will not enter the kingdom of heaven.
Personal Relationships
21 You have heard that the ancients were told, You shall not commit murder and Whoever commits murder shall be liable to the court.
Okay. Thanks. Yours and my perspectives are different on this and I hear what is yours.
Ever read any of Paul's writings? How about Acts 15?
Acts 15:28 For it seemed good to the Holy Ghost, and to us, to lay upon you no greater burden than these necessary things; 29 That ye abstain from meats offered to idols, and from blood, and from things strangled, and from fornication: from which if ye keep yourselves, ye shall do well. Fare ye well.
Why do Catholics now try to demand more "necessary things"?