5 For to what angel did God ever say, "You are my Son! I have today become your Father"? Or again, "I will become his Father, and he shall become my Son"?
Hebrews 1:5 Cross References - Goodspeed
Acts 13:33
33 that God has fulfilled to us, their children, the promise that he made to our forefathers, by raising Jesus to life, just as the Scripture says in the second psalm, You are my Son! Today I have become your Father!'
Hebrews 5:5
5 So even Christ did not claim for himself the dignity of the high priesthood, but he was appointed to it by him who said to him, "You are my Son! I have today become your Father!"