'Adversaries' in the Bible

And our adversaries said, They shall not know, neither see, till we come in the midst among them, and slay them, and cause the work to cease.

It so happened that when our adversaries heard that we were aware of these matters, God frustrated their intentions. Then all of us returned to the wall, each to his own work.

and Thou givest them into the hand of their adversaries, and they distress them, and in the time of their distress they cry unto Thee, and Thou, from the heavens, dost hear, and, according to Thine abundant mercies, dost give to them saviours, and they save them out of the hand of their adversaries.