When God shows His glory

At this point in time Moses was not feeling his best. While up on the mountain the people had sinned by worshiping the golden calf that they had convinced his brother Aaron to make for them. Though he had just spent forty days and nights with God he lost his cool and smashed the stone tablets God Himself had made. Yes, he had prayed on behalf of the people so that God didn't wipe them all out but still this was a burden he couldn't handle on his own. So he asked God for a favor, to show him His glory, to which God did just that.