3:2 My soul - Of me: the soul being commonly put for the person. In God - God hath utterly forsaken him. Selah - This word is no where used but in this poetical book, and in the song of Habakkuk. Probably it was a musical note, directing the singer either to lift up his voice, to make a pause, or to lengthen the tune. But withal, it is generally placed at some remarkable passage; which gives occasion to think that it served also to quicken the attention of the singer and hearer.
3:3 A shield - My defence. My glory - Thou hast formerly given, and wilt farther give occasion of glorying in thy power and favour. Lifter up - Thou wilt restore me to my former power and dignity.
3:4 His hill - Out of heaven, so called, Psal 15:1.
3:5 Slept - Securely, casting all my cares upon God. Awaked - After a sweet and undisturbed sleep.
3:7 Cheek bone - Which implies contempt and reproach. Teeth - Their strength and the instruments of their cruelty. He compares them to wild beasts.