So Great is His Love David had much to thank God for concerning himself, especially healing and forgiveness, which is why he begins by stirring up his own soul to praise God. But he soon moves on to speak on behalf of the people generally. It may have been composed to celebrate a deliverance from war or plague, or simply for an annual feast at which past history was recollected as a stimulus for praise. It chiefly exults in God’s faithfulness to his covenant, which is as everlasting as