When thou vowest a vow unto God, defer not to pay it; for he hath no pleasure in fools: pay that which thou hast vowed.
When thou vowest a vow (Deuteronomy 23:21-23). Hasty words in prayer (Ecclesiastes 5:2-3) suggest the subject of hasty vows. A vow should not be hastily made (as Jephthah's and Saul's, Judges 11:35; 1 Samuel 14:24). When made, it must be kept (Psalms 76:11), even as God keeps His word to us (cf. as to Israel Exodus 12:41; Exodus 12:51; Joshua 21:45).