Paul the apostles to the gentiles, did not see Christ, as starting a religion, but a New Creation, and fullfillment of Israel's goal.
Romans 11
25 I do not want you to be ignorant of this mystery, brothers and sisters, so that you may not be conceited: Israel has experienced a hardening in part until the full number of the Gentiles has come in, 26 and in this way [e] all Israel will be saved. As it is written:
“The deliverer will come from Zion;
he will turn godlessness away from Jacob.
27 And this is [f] my covenant with them
when I take away their sins.” [g]
28 As far as the gospel is concerned, they are enemies for your sake; but as far as election is concerned, they are loved on account of the patriarchs, 29 for God’s gifts and his call are irrevocable. 30 Just as you who were at one time disobedientto God have now received mercy as a result of their disobedience, 31 so they too have now become disobedient in order that they too may now [h] receive mercy as a result of God’s mercy to you. 32 For God has bound everyone over to disobedience so that he may have mercy on them all.
The cosmic Christ....New Creation..
“So if any one be in Christ, there is a new creation; the old things have passed away; behold all things have become new” (II Cor. 5:17, New Tr.).
Ephesians 1:-
18 I pray that the eyes of your heart may be enlightened in order that you may know the hope to which he has calledyou, the riches of his glorious inheritance in his holy people, 19 and his incomparably great power for us who believe. That power is the same as the mighty strength 20 he exerted when he raised Christ from the dead and seated him at his right hand in the heavenly realms, 21 far above all rule and authority, power and dominion, and every name that is invoked, not only in the present age but also in the one to come. 22 And God placed all things under his feet and appointed him to be head over everything for the church, 23 which is his body, the fullness of him who fills everything in every way.
Shalom