18. Moses went into the midst of the cloud--the visible token of
God's presence. Divine grace animated and supported him to enter with
holy boldness.
Moses was in the mount forty days and forty nights--The six days
spent in waiting are not included. During that protracted period he was
miraculously supported
(De 9:9),
on a peak scarcely thirty paces in compass.
JFB.
Picture Study Bible