What does Exodus 33:18 mean?

He said to him, “If your presence doesn’t go with me, don’t carry us up from here.

For how would people know that I have found favor in your sight, I and your people? Isn’t it that you go with us, so that we are separated, I and your people, from all the people who are on the surface of the earth?”

Yahweh said to Moses, “I will do this thing also that you have spoken; for you have found favor in my sight, and I know you by name.”

He said, “I will make all my goodness pass before you, and will proclaim Yahweh’s name before you. I will be gracious to whom I will be gracious, and will show mercy on whom I will show mercy.”

He said, “You cannot see my face, for man may not see me and live.”

Yahweh also said, “Behold, there is a place by me, and you shall stand on the rock.