Deuteronomy 10:3
So I made an ark of hard wood, and had two stones cut like the others, and went up the mountain with the stones in my hands.
Exodus 34:4
So Moses got two stones cut like the first; and early in the morning he went up Mount Sinai, as the Lord had said, with the two stones in his hand.
Exodus 25:5
And sheepskins coloured red, and leather, and hard wood;
Exodus 25:10
And they are to make an ark of hard wood; two and a half cubits long, and a cubit and a half wide and high.
Exodus 37:1-9
And Bezalel made the ark of hard wood, two and a half cubits long, a cubit and a half wide and a cubit and a half high;
Deuteronomy 10:1
At that time the Lord said to me, Make two other stones, cut like the first two, and come up to me on the mountain, and make an ark of wood.