O GOD the Lord, the strength of my salvation, you have covered my head in the day of battle.
All Commentaries on Psalms 140:7 Go To Psalms 140
Augustine of Hippo
AD 430
10. Commending this to the ears of God, let him say, "Lord, Lord." Thou Lord-Lord, that is, most truly Lord, not like unto the lords-men, not like the lords who buy with money-bags, but the Lord who buyeth with His Blood. "Lord, Lord, Thou strength of my health" (ver. 7), that is, who givest strength to my health. What is the meaning of "strength of my health"? He complained of the stumbling-blocks and snares of sinners, of wicked men, vessels of the devil, that barked around him and laid snares around him, of the proud that envy the righteous. But He forthwith added a comfort, "He that shall endure unto the end, the same shall be saved." This he observed and feared, and, distressed at the abundance of iniquities, turned himself to hope. Verily I shall be saved, if I endure unto the end: but endurance, so as to win salvation, pertaineth unto strength; Thou art "the strength of my salvation;" Thou makest me to endure, that I may attain salvation. ...Toiling then in this warfare, he looked back to the grace of God; and because already he had begun to be heated and parched, he found, as it were, a shade, whereunder to live. "Thou hast overshadowed my head in the day of battle:" that is, in the heat, lest I be heated, lest I be parched.