Solomon
Proverbs 20:25ESV·traditional attribution

It is a snare to say rashly, “It is holy,” and to reflect only after making vows.

Matthew Henry Presbyterian @wholebiblehenry

Two things, by which God is greatly affronted, men are here said to be ensnared by, and entangled not only in guilt, but in trouble and ruin at length: - 1. Sacrilege, men's alienating holy things and converting them to their own use, which is here called devouring them.

John Gill Reformed Baptist @doctorgill

It is a snare to the man who devoureth that which is holy,.... Which is separated to sacred uses, is devoted to the Lord, as firstfruits, tithes, offerings, &c. which if a man converts to his own use is sacrilege, and this is a sin and a snare, and brings ruin on him; see Mal 3:8; and after vows to make inquiry: that is a...

Jamieson-Fausset-Brown Reformed @jfbcommentary

devoureth . . . holy--or, better, "who rashly speaks promises," or "devotes what is holy," consecrating any thing. This suits better the last clause, which expresses a similar view of the results of rashly vowing.