New Living Translation
If you use stones to build my altar, use only natural, uncut stones. Do not shape the stones with a tool, for that would make the altar unfit for holy use.

American Standard Version
And if thou make me an altar of stone, thou shalt not build it of hewn stones; for if thou lift up thy tool upon it, thou hast polluted it.

Berean Study Bible
Now if you make an altar of stones for Me, you must not build it with stones shaped by tools; for if you use a chisel on it, you will defile it.

Douay-Rheims Bible
And if thou make an altar of stone unto me, thou shalt not build it of hewn stones: for if thou lift up a tool upon it, it shall be defiled.

English Revised Version
And if thou make me an altar of stone, thou shalt not build it of hewn stones: for if thou lift up thy tool upon it, thou hast polluted it.

King James Bible
And if thou wilt make me an altar of stone, thou shalt not build it of hewn stone: for if thou lift up thy tool upon it, thou hast polluted it.

World English Bible
If you make me an altar of stone, you shall not build it of cut stones; for if you lift up your tool on it, you have polluted it.

Young's Literal Translation
'And if an altar of stones thou dost make to Me, thou dost not build them of hewn work; when thy tool thou hast waved over it, then thou dost pollute it;

Exodus 20:25 Additional Translations ...