Acts 5:30

The God of our fathers raised up Jesus As Peter did in Acts 3:13, so here the Apostles point out that there is no severance of themselves from the worship of the Covenant God of Israel, but that they were teaching that His promise through Moses had now been fulfilled, for that in Jesus the promised prophet had appeared. Cp. Deuteronomy 18:15, and St Peter's speech, Acts 3:22.

whom ye slew and hanged on a tree Better, whom ye hanged on a tree and slew. This sentence describes the Roman, and not the Jewish mode of execution. With the latter people only those who were already dead were to be hanged (Deuteronomy 21:22; Joshua 10:26).

In the word which they use for slewthe Apostles intimate that the guilt of the Crucifixion was as truly upon the Jews as if the act had been done by their hands, and not by those of the Roman soldiery.

The phrase hanged on a treeis used by St Peter again (Acts 10:39), and by nobody else in the N. T. He also has a similar expression, treefor cross(1 Peter 2:24), "He bare our sins in his own body on the tree."