Peter"s hearers were the sons of the prophets in that they were the descendants of those people, not prophets themselves. They were sons of the covenant God made with Abraham because they were Abraham"s physical descendants. They were part of Abraham"s physical seed through whom God purposed to bring blessing to all the families of the earth ( Genesis 12:3; Genesis 22:18; Genesis 26:4). Their acceptance of God"s Messiah was essential to their fulfilling all God"s purposes through them and in them. God desired to bless all people, but He purposed to bless humanity by first blessing the Jews. It was to bless first the Jews and then all humanity that God had called Jesus forth as a prophet. "For you first" ( Acts 3:26, Gr. hymin proton) reflects the emphatic position of this phrase in the Greek text, which stresses the primacy of Jewish blessing. [source][source][source]
It seems that in view of the context the phrase "raised up" ( Acts 3:26) refers to God raising up Jesus as a prophet like Moses ( Acts 3:22). He probably did not mean that God raised Him up from the grave by resurrection, though obviously God did that too. [source][source][source]
The gospel went to the Jews before it went to the Gentiles (cf. Matthew 10:5-6; Acts 13:46; Romans 1:16) because the establishment of Christ"s earthly kingdom depends on Israel"s acceptance of her Messiah ( Matthew 23:39; Romans 11:26). Before Christ can reign on the earth, Israel must repent ( Zechariah 12:10-14). [source][source][source]
"This speech is one of the most christologically rich addresses in Acts , as Jesus is the servant, the Holy and Righteous One, the Author of life, the prophet like Moses, the Christ, and the seed of Abraham." [1][source]