God’s requirement for His people is that they “do justly … love mercy, and … walk humbly with [their] God” (Mic. 6:8), for the Lord loves justice (33:5; 37:28) and hears the prayers of those who have been treated unjustly (Ex. 22:26–27; Deut. 24:14–15; James 5:1–4). The word vengeance is often misinterpreted to mean “revenge” or “being vindictive,” as though God were having a temper tantrum, but “to avenge” means to uphold the law and give justice to those who have been wronged. Since the Lord is omniscient, He is able to judge motives as well as actions and deal with situations and people justly (Lev. 19:18; Deut. 32:35, 41; Rom. 12:17–21; Heb. 10:30–31). He is the Judge of all the earth (58:11; 82:8) and always does what is right (Gen. 18:25). “Shine forth,” means “show yourself, reveal your power and glory” (50:2; 80:1; Deut. 33:2; Hab. 3:1–5).
We want the Lord to act immediately (v. 3; see 6:3), but He is gracious and longsuffering (Ex. 34:6–7), and we must walk by faith (Luke 18:1–8). The proud and arrogant “belch out” evil words and commit evil deeds (10:2–11), and the godly can do nothing to stop them. Orphans, widows, and aliens in the land were under the special care of the Lord (68:5–6; 146:9; Ex. 22:20–24; Deut. 10:18–19; 14:28–29; 24:17–18; 26:12–13; 27:19; Isa. 1:17; 7:6; 22:3). The helpless are God’s covenant people and He is Jehovah—the Lord— a name used nine times in the psalm (vv. 1, 3, 5, 11, 14, 17, 18, 22, 23). The wicked convince themselves that God does not see their evil deeds (v. 7; 10:11; 59:7), but He does!