Leviticus 27:10

8 But if he be poorer than thy estimation, then he shall present himself before the priest, and the priest shall value him; according to his ability that vowed shall the priest value him.

9 And if it be a beast, whereof men bring an offering unto the LORD, all that any man giveth of such unto the LORD shall be holy.

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.

11 And if it be any unclean beast, of which they do not offer a sacrifice unto the LORD, then he shall present the beast before the priest:

12 And the priest shall value it, whether it be good or bad: as thou valuest it, who art the priest, so shall it be.

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