Psalms 116:13 - Coke's Commentary on the Holy Bible

I will take the cup of salvation— Or, of deliverances. The taking this cup was either more solemn in the temple, or more private in the family. The former was the drink-offering, or strong wine, poured out in the holy place; Numbers 28:7. This is what the Psalmist seems to speak of here, as may be gathered from the 14th, 17th, and 18th verses. Yet the Jews had also in their families a more private cup of thanksgiving, or commemoration of any deliverance received. The master of the family used to begin this, and he was followed by all his guests. The use of it was either daily, after each meal, or more solemnly at a festival. In the daily use of it they had this form: "Blessed be our God, the Lord of the world, who hath created the fruit of the vine." But on the festival day there was joined to it a hymn proper for the day. See Matthew 26:30 where the paschal commemoration, or post-coenium, advanced by Christ into the sacrament of his blood, was, after the Jewish custom, concluded with a hymn; and so here with the cup of salvation is joined a calling upon the name of the Lord; and both the more private and the more solemn performance of this is called the paying of vows to the Lord; namely, that thanksgiving and acknowledgment, which men in distress may be supposed to promise upon condition of deliverance, or which, if they promise not, they are however bound to perform, as a due return for their deliverance.