So Moses set out with Joshua his attendant and went up on the mountain of God.
The public ceremony of sealing the covenant being over, Moses is called up to receive further instructions, which we have in the following chapters. I. He is called up into the mount, and there he remains six days at some distance.
Commenting on Exodus 24:12-18
And Moses rose up, and his minister Joshua,.... In order to go up higher on the mount. Joshua, and he only, was to go up higher with him, though not to the top of the mount, at least not into the cloud upon it, as Moses did.
Moses went up into the mount of God--He was called to receive the divine transcript. Joshua was taken a little higher, and it would be a great comfort for the leader to have his company during the six days he was in patient waiting for the call on the seventh or sabbath day.