Moses
Numbers 5:21BSB·traditional attribution

and the priest shall have the woman swear under the oath of the curse—‘then may the LORD make you an attested curse among your people by making your thigh shrivel and your belly swell.

Matthew Henry Presbyterian @wholebiblehenry

We have here the law concerning the solemn trial of a wife whose husband was jealous of her. Observe, I. What was the case supposed: That a man had some reason to suspect his wife to have committed adultery, Num 5:12-14. Here, 1. The sin of adultery is justly represented as an exceedingly sinful sin; it is going aside from God and virtue, and the good way, Pro 2:17.

Commenting on Numbers 5:11-31

John Gill Reformed Baptist @doctorgill

Then the priest shall charge the woman with an oath of cursing,.... An oath which has a curse annexed to it, if taken falsely, which was to be pronounced upon the woman if guilty: and the priest shall say unto the woman; pronouncing the imprecation or curse upon her, she having taken the oath, should she be guilty of the crime suspected of, and she...

Jamieson-Fausset-Brown Reformed @jfbcommentary

The Lord make thee a curse, &c.--a usual form of imprecation (Isa 65:15; Jer 29:22).