Psalms 116:13

13. Cup of salvation The special dispensations, or allotments, of God to men, whether of joy or sorrow, mercy or judgment, are represented often under the figure of a cup, the contents of which they are to drink. Thus, of good, Psalms 16:5; Psalms 23:5; Jeremiah 16:7: of wrath, Psalms 11:6; Psalms 75:8; Jeremiah 25:15; Jeremiah 25:17; Jeremiah 25:28; Ezekiel 23:31-33. But the allusion here would seem to be to the cup of libation, or drink-offering, which was ordinarily wine, and used in the daily sacrifice and in burnt offerings to indicate devotion to God in form of a covenant. Thus blood, the emblem of life, and wine, representing richness and acceptableness the former for expiation and the latter for thanksgiving made the offering complete.