The Church, the Body of Christ Israel, has always been those individuals God foreknew in the purpose of Christ Rom 11:2
2 God hath not cast away his people which he foreknew. Wot ye not what the scripture saith of Elias? how he maketh intercession to God against Israel saying,
The same people Paul speaks of here as referring to the Church the Body of Christ Rom 8:29
29 For whom he did foreknow, he also did predestinate to be conformed to the image of his Son, that he might be the firstborn among many brethren.
And these are the ones it is promised Jesus shall save from their sins , His People Matt 1:21
21 And she shall bring forth a son, and thou shalt call his name Jesus: for he shall save his people from their sins. 2
