Much of Paul's contest was with 2P2P in Judaism. Judaism had decided to replace the mankind-wide promise to Abraham. That promise was as wide as Gen 3:16. But Judaism grew to replace and void it with only those particulars that were about them (Gal 3:17). When the request by Christ and the apostles to be missionaries to the nations came, Judaism was like a deer staring at headlights. Both the content and method of the promise were at risk.
We have pretty much got used to reading the NT without awareness of this contest with Judaism. Or it has been turned into an issue of 'grace vs works,' which does not capture the totality. Paul said there were not other gospels in Gal 3, and he said that , there, because Judaizers would go around with others that were Israel-centric. He was dealing with the edge of that right there at Gal, and they were going to rupture that group into Judeo-centric believers with the proper circumcision vs others, to recieve the (mistaken) promises. Paul debates them on both the method and content of promise reception.
2 Cor also has this background. The "impostles" (impostor apostles) were Judaizers. They were not workers for the new covenant, but still trying to spread the 'gospel' of the old which was running on fumes by that time (ch 3-4). He has to refer to other gospels again: those with their other spirits/Jesuses/gospels are Jews (11:22) but have the old covenant's content, not God-was-in-Christ settling the debt of sin. 11:3 expresses the same fear as Gal 3:1. Satan's cunning and bewitchment.
We have pretty much got used to reading the NT without awareness of this contest with Judaism. Or it has been turned into an issue of 'grace vs works,' which does not capture the totality. Paul said there were not other gospels in Gal 3, and he said that , there, because Judaizers would go around with others that were Israel-centric. He was dealing with the edge of that right there at Gal, and they were going to rupture that group into Judeo-centric believers with the proper circumcision vs others, to recieve the (mistaken) promises. Paul debates them on both the method and content of promise reception.
2 Cor also has this background. The "impostles" (impostor apostles) were Judaizers. They were not workers for the new covenant, but still trying to spread the 'gospel' of the old which was running on fumes by that time (ch 3-4). He has to refer to other gospels again: those with their other spirits/Jesuses/gospels are Jews (11:22) but have the old covenant's content, not God-was-in-Christ settling the debt of sin. 11:3 expresses the same fear as Gal 3:1. Satan's cunning and bewitchment.