I completely disagree with this.
Noah was separated from the world with "extreme prejudice", yet he never involved himself in all this palaver either before or after the flood.
Abraham was set apart from the world and never did all this.
Noah understood clean and unclean animals - Genesis 7:2
Noah also offered one of each clean animal up to God as a burnt first fruit offering, something only written about in Torah - Genesis 8:20
Also, Abraham
did obey and keep God's Holy Law - Genesis 26:5
The Pharisees did these things, yet remained completely in the world and excluded from the kingdom.
No. The Pharisees believed that their
observance to the law justified and saved them. That is wrong. It's faith that comes first, that then is followed and perfected by works. Not works first, that then perfects faith.
Not only did they have it backwards, but they also made man-made laws and made these man-made laws and traditions of more importance than the laws of God. As Peter mentions in Acts 10.
Peter on the roof top was rebuked for refusing God's command to so something against the law, kill and eat an unclean animal.
In the 1st century ad, Jews had a
man-made law, that prevented any jew from spreading the gospel to gentiles. It went as far as to call gentiles dogs, that they were unclean, and couldn't be fellowshipped with, that they couldn't be eaten with, and if you were a jew, I wasn't to enter into your home, nor you into mine.
As Peter himself points out,
Acts 10:27-33
27And as he talked with him, he went in, and found many that were come together.
28And he said unto them, Ye know how that it is an unlawful thing for a man that is a Jew to keep company, or come unto one of another nation;
but God hath shewed me that I should not call any man common or unclean.
29Therefore came I unto you without gainsaying, as soon as I was sent for: I ask therefore for what intent ye have sent for me?
Right there Peter reveals the intent of the vision. It had nothing to do with food, but revealed to Peter that the gift he had been given, wasn't just to the Jews, but to anyone that had faith in Jesus. Peter had the vision three times, and remember, there were three gentiles that showed up to his door.
30And Cornelius said,
Four days ago I was fasting until this hour; and at the ninth hour I prayed in my house, and, behold, a man stood before me in bright clothing,
31And said, Cornelius, thy prayer is heard, and thine alms are had in remembrance in the sight of God.
32Send therefore to Joppa, and call hither Simon, whose surname is Peter; he is lodged in the house of
one Simon a tanner by the sea side: who, when he cometh, shall speak unto thee.
33Immediately therefore I sent to thee; and thou hast well done that thou art come.
Now therefore are we all here present before God, to hear all things that are commanded thee of God.
Peter himself, had no idea what God was intending up until that point. Therefore, when Cornelius here is saying "to hear all things that are commanded thee of God" he's not referring to what God has commanded him in his coming to the house of Cornelius, because up until Peter said that, he had no idea. He's referring to the law, the very thing that was unfamiliar to the gentiles. If then you continue, and read on:
Acts 10:34-35
34Then Peter opened his mouth, and said, Of a truth I perceive that God is no respecter of persons: 35But in every nation he that feareth him, and worketh righteousness, is accepted with him.
This is Peter again acknowledging that God was sent to the very people Jews banned Him from being administered to - Gentiles. Up until this point, because God divorced Israel (the northern house/kingdom of Israel) Jews banned them from the truth and from coming near to God (since they had been scattered amongst the gentiles, and arguably lost, banned and forbidden according to the Torah to be kept apart from God until after His death - as is custom to the wife (Israel) divorced from her husband (God) for committing adultery (worshipping other "gods") according to Torah).
Then if you again, continue to read that chapter:
Acts 10:44-48
44While Peter yet spake these words, the Holy Ghost fell on all them which heard the word. 45And they of the circumcision which believed were astonished, as many as came with Peter, because that on the Gentiles also was poured out the gift of the Holy Ghost. 46For they heard them speak with tongues, and magnify God. Then answered Peter, 47Can any man forbid water, that these should not be baptized, which have received the Holy Ghost as well as we? 48And he commanded them to be baptized in the name of the Lord. Then prayed they him to tarry certain days.
The highlighted portions, show the Jews being amazed that God came to the very people He according to Torah was banned from, because they realized that God died for them, just as well as for the Jews. Then in verse 47, Peter acknowledges this, by asking rhetorically, who can keep these ones from God, since He wills them to be brought near to Him?
In Isaiah 66:17, God Himself prophesies through the prophet Isaiah, about the end of times, and in the end of times, in judgement, the eaters of swine's flesh will burn in the pit with the rest of those who commit abominations. This isn't about something back in the OT, this was referencing the end of times during judgement.