So will I sing praise unto thy name for ever, that I may daily perform my vows.

Jamieson-Fausset-Brown Bible Commentary

8. Thus for new blessings will new vows of praise ever be paid.

Matthew Henry's Concise Commentary

61:5-8 There is a people in the world that fear God's name. There is a heritage peculiar to that people; present comforts in the soul, earnests of future bliss. Those that fear God have enough in him, and must not complain. We need desire no better heritage than that of those who fear God. Those abide to good purpose in this world, who abide before God, serve him, and walk in his fear; those who do so, shall abide before him for ever. And these words are to be applied to Him of whom the angel said, the Lord shall give unto him the throne of his father David, and of his kingdom there shall be no end, Lu 1:32. God's promises, and our faith in them, are not to do away, but to encourage prayer. We need not desire to be better secured than under the protection of God's mercy and truth. And if we partake of that grace and truth which came by Jesus Christ, we may praise him, whatever be our outward circumstances. But renewed experience of God's mercy and truth towards his people in Christ, is the main matter of our joy in him, and our praise unto him.