'Appear Before Me' in the Bible

Pharaoh said to him, "Go from me! Watch out for yourself! Do not appear before me again, for when you see my face you will die!"

You are to observe the Feast of Unleavened Bread; seven days you must eat bread made without yeast, as I commanded you, at the appointed time of the month of Abib, for at that time you came out of Egypt. No one may appear before me empty-handed.

Now the firstling of a donkey you may redeem with a lamb, but if you do not redeem it, then break its neck. You must redeem all the firstborn of your sons. "No one will appear before me empty-handed.