Exodus 34:28

34:28 So he was there with the Lord forty days and forty nights; he did not eat bread, and he did not drink water. He wrote on the tablets the words of the covenant, the ten commandments.

Exodus 39:32

Moses Inspects the Sanctuary

39:32 So all the work of the tabernacle, the tent of meeting, was completed, and the Israelites did according to all that the Lord had commanded Moses – they did it exactly so.