I will {h} take the cup of salvation, and call upon the name of the LORD.

(h) In the Law they used to make a banquet when they gave solemn thanks to God, and to take the cup and drink in sign of thanksgiving.

Jamieson-Fausset-Brown Bible Commentary

13. the cup of salvation-the drink offering which was part of the thank offering (Nu 15:3-5).

Matthew Henry's Concise Commentary

116:10-19 When troubled, we do best to hold our peace, for we are apt to speak unadvisedly. Yet there may be true faith where there are workings of unbelief; but then faith will prevail; and being humbled for our distrust of God's word, we shall experience his faithfulness to it. What can the pardoned sinner, or what can those who have been delivered from trouble or distress, render to the Lord for his benefits? We cannot in any way profit him. Our best is unworthy of his acceptance; yet we ought to devote ourselves and all we have to his service. I will take the cup of salvation; I will offer the drink-offerings appointed by the law, in token of thankfulness to God, and rejoice in God's goodness to me. I will receive the cup of affliction; that cup, that bitter cup, which is sanctified to the saints, so that to them it is a cup of salvation; it is a means of spiritual health. The cup of consolation; I will receive the benefits God bestows upon me, as from his hand, and taste his love in them, as the portion not only of mine inheritance in the other world, but of my cup in this. Let others serve what masters they will, truly I am thy servant. Two ways men came to be servants. By birth. Lord, I was born in thy house; I am the son of thine handmaid, and therefore thine. It is a great mercy to be children of godly parents. By redemption. Lord, thou hast loosed my bonds, thou hast discharged me from them, therefore I am thy servant. The bonds thou hast loosed shall tie me faster unto thee. Doing good is sacrifice, with which God is well pleased; and this must accompany giving thanks to his name. Why should we offer that to the Lord which cost us nothing? The psalmist will pay his vows now; he will not delay the payment: publicly, not to make a boast, but to show he is not ashamed of God's service, and to invite others to join him. Such are true saints of God, in whose lives and deaths he will be glorified.