Joshua 23:8-11

but cleave unto the LORD your God, as ye have done unto this day. For the LORD hath driven out from before you great nations and strong: but as for you, no man hath been able to stand before you unto this day. One man of you shall chase a thousand: for the LORD your God, he it is that fighteth for you, as he hath promised you. Take good heed therefore unto yourselves, that ye love the LORD your God.