Psalms 30:4

The great things the Lord has done for us, both by his providence and by his grace, bind us in gratitude to do all we can to advance his kingdom among men, though the most we can do is but little. God's saints in heaven sing to him; why should not those on earth do the same? Not one of all God's perfections carries in it more terror to the wicked, or more comfort to the godly, than his holiness. It is a good sign that we are in some measure partakers of his holiness, if we can heartily rejoice at the remembrance of it. Our happiness is bound up in the Divine favour; if we have that, we have enough, whatever else we want; but as long as God's anger continues, so long the saints' weeping continues.

Sing unto the Lord, O ye saints of his. "Join my song; assist me to express my gratitude." He felt that he could not praise God enough himself, and therefore he would enlist the hearts of others. Sing unto the Lord, O ye saints of his. David would not fill his choir with reprobates, but with sanctified persons, who could sing from their hearts. He calls to you, ye people of God, because ye are saints: and if sinners are wickedly silent, let your holiness constrain you to sing. You are his saints —chosen, blood bought, called, and set apart for God; sanctified on purpose that you should offer the daily sacrifice of praise. Abound ye in this heavenly duty. Sing unto the Lord. It is a pleasing exercise; it is a profitable engagement. Do not need to be stirred up so often to so pleasant a service. And give thanks. Let your songs be grateful songs, in which the Lord's mercies shall live again in joyful remembrance. The very remembrance of the past should tune our harps, even if present joys be lacking. At the remembrance of his holiness. Holiness is an attribute which inspires the deepest awe, and demands a reverent mind; but still give thanks at the remembrance of it. "Holy, holy, holy!" is the song of seraphim and cherubim; let us join it —not dolefully, as though we trembled at the holiness of God, but cheerfully, as humbly rejoicing in it.