'Face of the Lord' in the Bible

And they heard the voice of the LORD God as he walked in the garden in the cool of the day. And Adam hid himself and his wife also from the face of the LORD God, among the trees of the garden.

And Cain went out from the face of the LORD, and dwelt in the land Nod, on the east side of Eden.

for I will cast out the nations before thee and will enlarge thy coasts, so that no man shall desire thy land, while thou goest up to appear before the face of the LORD thy God, thrice in the year.

And yet I hope my blood shall not fall to the earth before the face of the LORD, though the king of Israel be come out to hunt a flea, as men hunt the partridges in the mountains."

But the face of the LORD is against them that do evil, to root out the remembrance of them from the earth.

And thou child, shalt be called the prophet of the highest, for thou shalt go before the face of the Lord, to prepare his ways:

For the eyes of the Lord are over the righteous, and his ears are open unto their prayers: but the face of the Lord beholdeth them that do evil.