He Foreknew

Question 1

You only have I known of all the families of the Earth

Answer 1

Amos 3:1 Hear this word that the LORD hath spoken against you, O children of Israel, against the whole family which I brought up from the land of Egypt, saying,
Amos 3:2 You only have I known of all the families of the earth: therefore I will punish you for all your iniquities.

Question 2

Whom he did Foreknow

Answer 2

Romans 8:29 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.

Question 3

Hath God cast away his people

Answer 3

Romans 11:1 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.
Romans 11:2 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,