'Vow' in the Bible

" 'But if his sacrifice [is] [for] a vow or [as] a freewill offering, it must be eaten on the day of his presenting his sacrifice, and on the next day the remainder from it may be eaten,

And if anyone brings a sacrifice of fellowship offerings for Yahweh to fulfill a vow or as a freewill offering from the cattle or from the flock, it must be without defect {to be acceptable}; there must not be any physical defect in it.

As for an ox or sheep that is deformed or that is stunted, you may present it [as] a freewill offering, but for a vow it will not be accepted.

"Speak to the {Israelites}, and say to them, 'When a man makes a vow according to your proper value [of] persons to Yahweh,

But if he [is] poorer than your proper value, then he shall present himself {before} the priest, and the priest shall set a value [on] him; the priest shall value him {according to} what the person who made a vow {can afford}.