Numbers 5:10 (BSB)

Each man’s sacred gifts are his own, but whatever he gives to the priest will belong to the priest.”

From Numbers 5. Also in the ESV.

Commentary on Numbers 5:10

• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on Numbers 5:1-10: Here is, I. A command for the purifying of the camp, by turning out from within its lines all those that were ceremonially unclean, by issues, leprosies, or the touch of dead bodies, until they were cleansed according to the law, Num 5:2, Num 5:3. 1. These orders are executed immediately, Num 5:4.
• John Gill (Reformed Baptist), Exposition of the Old and New Testaments on Numbers 5:10: And every man's hallowed things shall be his,.... Which he, by a vow or freewill offering, separates to holy uses; these are at his own dispose, to give to what priest he will, or they are the priest's; for what a man devotes to the Lord is to be given to them, or such things as God has hallowed, sanctified, and set apart for sacred...
• Keil & Delitzsch (Lutheran), Biblical Commentary on the Old Testament on Numbers 5:5-10: Num 5:5-10 Restitution in Case of a Trespass. - No crime against the property of a neighbour was to remain without expiation in the congregation of Israel, which was encamped or dwelt around the sanctuary of Jehovah; and the wrong committed was not to remain without restitution, because such crimes involved unfaithfulness (מעל, see Lev 5:15) towards Jehovah.