Psalms 71:21

“Thou shalt increase my greatness, etc.] His temporal greatness, as he did, by crushing the rebellion of his son; returning him to his palace and family; and giving him rest from his enemies all around: and his spiritual greatness, by favouring him with his presence; by shedding abroad his love in his heart; by enlarging his experience; increasing his faith, causing his love to abound, and him to grow in every grace, and in the knowledge of Christ; and comfort me on every side; by his Spirit, word, and ordinances; by his truths and promises; with his rod and staff; and with mercy, grace, and lovingkindness. The phrase denotes the abundance of comfort, which should come as it were from every…”

“Thou shalt increase my greatness - Thou wilt not merely restore me to my former condition, but wilt enlarge my happiness, and wilt do still greater things for me. And comfort me on every side - literally, “Thou wilt turn thyself; thou wilt comfort me.” The word also means to surround; to encompass Genesis 2:11, Gen 2:13; 1 Kings 7:24; Psalms 18:5; and the idea here may be that God would “go around him,” or encircle him, and would thus comfort him. This idea is expressed in our common version. It was the confident assurance of entire, or complete consolation. return to 'Top of Page'”

“71:21 Being assured of God’s comfort also assures the poet of God’s presence, care, and goodness (23:4, 6; 86:17). God’s comfort enhances the psalmist’s sense of being alive (see 119:50).”

“increase: Psa 72:11; Sa2 3:1; Isa 9:7, Isa 49:6; Rev 11:15 comfort: Psa 32:10; Co2 1:4, Co2 1:5, Co2 2:14, Co2 7:6, Co2 7:13; Th1 3:9 Psalms 71:22”