Exodus 24:13

24:13 And Moses rose up, and his minister Joshua: and Moses went up into the mount of God.

Exodus 24:15

24:15 And Moses went up into the mount, and a cloud covered the mount.

Exodus 24:18

24:18 And Moses went into the midst of the cloud, and gat him up into the mount: and Moses was in the mount forty days and forty nights.