Exodus 40:20

20 And he took the law and put it inside the ark, and put the rods at its side and the cover over it;

Exodus 40:20 Meaning and Commentary

Exodus 40:20

And he took and put the testimony into the ark
The ten commands, called the "testimony", because they testified and declared what was the will of God with respect to things to be done, or not done. The Targum of Jonathan says, he put the broken pieces of the tables into it; but what became of them, or were done with them, we nowhere read; and it does not appear that any other, but those that Moses hewed by the order of God, were put into the ark; see ( Deuteronomy 10:1-5 )

and set the staves on the ark;
that it might be ready to be carried whenever a remove was necessary:

and put the mercy seat above upon the ark;
together with the cherubim.

Exodus 40:20 In-Context

18 Moses put up the House; placing its bases in position and lifting up its uprights, putting in the rods and planting the pillars in their places;

19 Stretching the outer tent over it, and covering it, as the Lord had given him orders.

20 And he took the law and put it inside the ark, and put the rods at its side and the cover over it;

21 And he took the ark into the House, hanging up the veil before it as the Lord had given him orders.

22 And he put the table in the Tent of meeting, on the north side outside the veil.