Exodus 40:20
ESV
He took the testimony and put it into the ark, and put the poles on the ark and set the mercy seat above on the ark.
NIV
He took the tablets of the covenant law and placed them in the ark, attached the poles to the ark and put the atonement cover over it.
NASB
Then he took the testimony and put it into the ark, and attached the poles to the ark, and put the atoning cover on top of the ark.
CSB
Moses took the testimony and placed it in the ark, and attached the poles to the ark. He set the mercy seat on top of the ark.
NLT
He took the stone tablets inscribed with the terms of the covenant and placed them inside the Ark. Then he attached the carrying poles to the Ark, and he set the Ark’s cover — the place of atonement — on top of it.
KJV
And he took and put the testimony into the ark, and set the staves on the ark, and put the mercy seat above upon the ark:
NKJV
He took the Testimony and put it into the ark, inserted the poles through the rings of the ark, and put the mercy seat on top of the ark.