Hi Atpollard,
The passages you posted are referring to the Jews. If you look at Romans 2:17 Paul turns his attention to the Jews in the church at Rome.
17
Behold, thou art called a Jew, and restest in the law, and makest thy boast of God, (Rom. 2:17 KJV)
He carries on this discussion with the Jewish members at Rome until 11:13 where he turns his attention to the Gentile members of the church.
13
For I speak to you Gentiles, inasmuch as I am the apostle of the Gentiles, I magnify mine office: (Rom. 11:13 KJV)
That whole section between these two verses is addressed to the Jewish believers in the church. The passage in question is,
28 And we know that all things work together for good to them that love God, to them who are the called according to his purpose.
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.
(Rom. 8:28-29 KJV)
So, the ones that were predestinated are those God foreknew. The question becomes who did God foreknow? Paul doesn't leave us hanging, he tells us.
I say then, Hath God cast away his people? God forbid.
For I also am an Israelite, of the seed of Abraham, of the tribe of Benjamin.
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,1 (Rom. 11:1-2 KJV)
Paul tells us right here that the people God foreknew were the Israelites. If it is the Israelites that God foreknew then it was them that He also predestined.
The other passage, Ephesians 1 is also a reference to Israel. I'm going to post a link to my commentary on this because it's took much to put into a post.
Ephesians 1