God: "I looked for someone to take a stand for me, and stand in the gap" (Ezekiel 22:30)
[Repentance] is the true turning of our life to God, a turning that arises from a pure and earnest fear of Him; and it consists in the mortification of our flesh and of the old man, and in the vivification of the Spirit.
The duty of singing praises to God seems to be given wholly to excite and express religious affections. There is no other reason why we should express ourselves to God in verse rather than in prose and with music, except that these things have a tendency to move our affections.