Romans 16:20

Cyprian Epistle LXXVII

And, as a sounding trumpet, you have stirred up God's soldiers, furnished with heavenly arms, to the close encounter; and fighting in the first rank, you have slain the devil with a spiritual sword: you have also ordered the troops of the brethren, on the one hand and on the other, with your words, so that snares were on all sides laid for the enemy, and the severed sinews of the very carcase of the public foe were trodden under foot.[3]

Epistle of Theonas to Lucianus

and then also shall ye do away with all ill-will, and bruise the head of that ancient serpent,[22]

Constitutions of the Holy Apostles Book VIII

And after that let him proclaim: Ye penitents, pray; let us all earnestly pray for our brethren in the state of penitence, that God, the lover of compassion, will show them the way of repentance, and accept their return and their confession, and bruise Satan under their feet suddenly,[64]