Exodus 25:21

ASV — American Standard Version

“And thou shalt put the mercy-seat above upon the ark; and in the ark thou shalt put the testimony that I shall give thee.”

KJV — King James Version

“And thou shalt put the mercy seat above upon the ark; and in the ark thou shalt put the testimony that I shall give thee.”

WEB — World English Bible

“You shall put the mercy seat on top of the ark, and in the ark you shall put the covenant that I will give you.”