expecting something in return (from them) is also not appropriate —

 Considering -ī am an enemy- —

being the enemy (of our sins) —

[matching] opponent —

being inimical —

comparison —

opposition —

turning around —

facing each other —

concurrence. —

standing as an opponent —

transforming his basic nature and qualities —

 voluntarily going and exchanging —

with various forms which keep changing constantly —