For the king trusteth in the LORD, and through the mercy of the most High he shall not be moved.
7. For the king trusteth in the Lord] So then his joy was the joy of faith, which is unspeakable and full of glory; and he must needs be safe who relieth upon God, Isaiah 26:4 .
He shall not be moved] sc. From the prosperous success of his affairs and state; the beauty and bulwark whereof is God's never failing mercy.