Charles Ellicott Commentary Leviticus 27:9

"And if it be a beast, whereof men offer an oblation unto Jehovah, all that any man giveth of such unto Jehovah shall be holy." — Leviticus 27:9 (ASV)

And if it be a beast, whereof men bring an offering. —That is, if what a man vows consists of sacrificial quadrupeds, namely, bullocks, sheep, or goats.

Shall be holy. —That is, must not be redeemed at all. They were delivered to the sanctuary: they were sold by the priests to those Israelites who required them as sacrifices for the altar, and the money expended in the maintenance of the service.