In the end, Moses finally had the courage to ask. God was pleased with Moses, and so He agreed.
But God warned, “You cannot see my face.” No sinful human may see God's face and live. But before God let Moses see Him, he did something to protect Moses.
God did not want Moses to accidentally see too much of Him and die.
God said to Moses,
“There is a place near me where you may stand on the big rocks. When my glory passes by, I will put you in a crevice in the rocks and cover you with my hand until I have passed by. Then I will take my hand away and let you see my back; but my face must not be seen.”
And that is exactly what happened.