en_tn_condensed/act/13/33.md

for us, their children

"for us, who are the children of our ancestors." Paul is still speaking to the Jews and Gentile converts in the synagogue at Antioch of Pisidia. These ancestors were the physical ancestors of the Jews and the spiritual ancestors of the converts.

by raising up Jesus

"by making Jesus alive again"

As it is written in the second Psalm

"This is what was written in the second Psalm"

Son ... Father

These are important titles that describe the relationship between Jesus and God.