George Muller

It is a common temptation of Satan to make us give up the reading of the Word and prayer when our enjoyment is gone; as if it were of no use to read the Scriptures when we do not enjoy them, and as if it were no use to pray when we have no spirit of prayer.

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.