And we are witnesses of all things
That is, Peter, and the rest of the apostles, were witnesses, even eyewitnesses, of Christ's going about from place to place, and of the good he did every where, and of the miracles which he wrought; and even of every thing
which he did both in the land of the Jews;
which takes in not only Judea, but Galilee, and beyond Jordan;
and in Jerusalem;
the metropolis of Judea:
whom they slew and hanged on a tree;
whom the Jews put to death; for since it was by their instigation, and at their request, it is ascribed to them; and who not content with any death, desired he might be crucified, or hanged on a tree; partly because of the pain and torture of it, and partly because of the shame and ignominy that attended it; as well as to throw off the scandal of his death from themselves to the Romans, crucifixion being a Roman punishment.