Augustine of Hippo

"If My people would have heard Me, if Israel would have walked in My ways" [Psalm 81:13]. For perchance that Israel says, Behold I sin, it is manifest, I go after the affections of my own heart: but what can I do? The devil does this. Demons do this. What is the devil? Who are the demons? Certainly your enemies. "Unto nothing all their enemies I would have brought down; and on them that oppress them I would have sent forth My hand" [Psalm 81:14]. But now what have they to do to complain of enemies? Themselves have become the worse enemies. For how? What follows? Of enemies ye complain, yourselves, what are you?