Charles H. Spurgeon on Psalms 61:8

So will I sing praise unto thy name for ever. Because my prayer is answered, my song shall be perpetual; because Jesus for ever sits at thy right hand, it shall be acceptable; because I am preserved in him, it shall be grateful. David had given vocal utterance to his prayer by a cry; he will now give expression to his praise by a song: there should be a parallel between our supplications and our thanksgivings. We ought not to leap in prayer, and limp in praise. The vow to celebrate the divine name for ever is no hyperbolical piece of extravagance, but such as grace and glory shall enable us to carry out to the letter. That I may daily perform my vows. To God who adds days to our days we will devote all our days. We vowed perpetual praise, and we desire to render it without intermission. We would worship God de die in diem, going right on as the days roll on. We ask no vacation from this heavenly vocation; we would make no pause in this sacred service. God daily performs his promises, let us daily perform our vows: he keeps his covenant, let us not forget ours. Blessed be the name of the Lord from this time forth, even for evermore.