Solomon
Ecclesiastes 5:4BSB·traditional attribution

When you make a vow to God, do not delay in fulfilling it, because He takes no pleasure in fools. Fulfill your vow.

Matthew Henry Presbyterian @wholebiblehenry

Four things we are exhorted to in these verses: - I. To be conscientious in paying our vows. 1. A vow is a bond upon the soul (Num 30:2), by which we solemnly oblige ourselves, not only, in general, to do that which we are already bound to do, but, in some particular instances, to do that to do which we were not under any...

Commenting on Ecclesiastes 5:4-8

John Gill Reformed Baptist @doctorgill

When thou vowest a vow unto God,.... Or "if thou vowest" (r), as the Vulgate Latin version; for vows are free and indifferent things, which persons may make or not; there is no precept for them in the word of God; instances and examples there are, and they may be lawfully made, when they are in the power of man to perform, and are not...

Jamieson-Fausset-Brown Reformed @jfbcommentary

When thou vowest a vow unto God--Hasty words in prayer (Ecc 5:2-3) suggest the subject of hasty vows. A vow should not be hastily made (Jdg 11:35; Sa1 14:24). When made, it must be kept (Psa 76:11), even as God keeps His word to us (Exo 12:41, Exo 12:51; Jos 21:45).