Wait on the lord (comp. Psalms 37:2, Psalms 37:5, Psalms 37:7; and Psalms 27:14; Psalms 62:5; Psalms 130:5; Proverbs 20:22). The injunction is repeated so often because of man's extreme impatience and unwillingness to "tarry the Lord's leisure" (Prayer-book Version of Psalms 27:1-14 :16) trustfully and confidently.
And keep his way. The way in which he would have them walk—the way of righteousness (comp. Psalms 37:3). And he shall exalt thee to inherit the land (see Psalms 37:29, and the comment ad loc.). When the ungodly are cut off, thou shalt see it (comp.
Psalms 52:5, Psalms 52:6; Psalms 91:8). Doubtless with some satisfaction. As the "ungodly" spoken of are employed in watching for an occasion to "slay" the righteous (Psalms 37:32), these last can scarcely witness their removal from the world by God's providence without a feeling of relief.