Trade is nothing else but a Commutation of Superfluities; for instance: I give mine, what I can spare, for somewhat of yours, which I want, and you can spare. ↗
Satan cannot win. Why not? Because he has denied God's sovereignty and disobeyed God's law. But Moses was told explicitly, God's blessings come only from obedience. Satan will not win because he has abandoned God's tool of dominion, biblical law. ↗
Nevertheless, this one fact should be apparent: turning the other cheek is a bribe. It is a valid form of action for only so long as the Christian is impotent politically or militarily. ↗