Ps 57:1-11. Altaschith--or, "Destroy not." This is perhaps an enigmatical allusion to the critical circumstances connected with the history, for which compare 1Sa 22:1; 26:1-3. In Moses' prayer (De 9:26) it is a prominent petition deprecating God's anger against the people. This explanation suits the fifty-eighth and fifty-ninth also. Asaph uses it for the seventy-fifth, in the scope of which there is allusion to some emergency. Michtam--(See on Ps 16:1, title). To an earnest cry for divine aid, the Psalmist adds, as often, the language of praise, in the assured hope of a favorable hearing.
2. performeth--or, completes what He has begun.
5. This doxology illustrates his view of the connection of his deliverance with God's glory.
6. (Compare Ps 7:15; 9:15, 16).
7. I will . . . praise--both with voice and instrument.
8. Hence--he addresses his glory, or tongue
(Ps 16:9; 30:12),
and his psaltery, or lute, and harp.
I myself . . . early--literally, "I will awaken dawn," poetically expressing his zeal and diligence.
9, 10. As His mercy and truth, so shall His praise, fill the universe.