Leviticus 27:10

8 But if the one making the vow is too poor to pay the valuation, he is to present the person before the priest, who shall set the value according to what the one making the vow can afford.

9 If he vows an animal that may be brought as an offering to the LORD, any such animal given to the LORD shall be holy.

He must not replace it or exchange it, either good for bad or bad for good. But if he does substitute one animal for another, both that animal and its substitute will be holy.

11 But if the vow involves any of the unclean animals that may not be brought as an offering to the LORD, the animal must be presented before the priest.

12 The priest shall set its value, whether high or low; as the priest values it, the price will be set.

This was said to Israel at a particular time, so it is wise to read it together with the surrounding text. Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
He must not replace it or exchange it, either good for bad or bad for good. But if he does substitute one animal for another, both that animal and its substitute will be holy.
KJV
He shall not alter it, nor change it, a good for a bad, or a bad for a good: and if he shall at all change beast for beast, then it and the exchange thereof shall be holy.
WEB
He shall not alter it, nor exchange it, a good for a bad, or a bad for a good. If he shall at all exchange animal for animal, then both it and that for which it is exchanged shall be holy.
ASV
He shall not alter it, nor change it, a good for a bad, or a bad for a good: and if he shall at all change beast for beast, then both it and that for which it is changed shall be holy.
DARBY
They shall not alter it nor change it, a good for a bad, or a bad for a good; and if he at all change beast for beast, then it and the exchange thereof shall be holy.
BLB
He shall not substitute it or exchange it, good for bad or bad for good. And if he actually substitutes animal for animal, then it shall be that it and the one exchanged for it shall be holy.
ÅB
En skal ikke gi noe annet i stedet og ikke bytte det, hverken et godt med et dårlig eller et dårlig med et godt; bytter noen et dyr med et annet, da skal både det og det som det byttes med, være hellig.
OTB
De må ikke bytte eller erstatte det, godt for dårlig eller dårlig for godt; hvis de gjør det, skal både det opprinnelige og erstatningen bli hellige.
B1930
En skal ikke gi noget annet i stedet og ikke bytte det, hverken et godt med et dårlig eller et dårlig med et godt; bytter nogen et dyr med et annet, da skal både det og det som det byttes med, være hellig.

Study notes (Tyndale)

Original text and word study

Cross references