'Empty' in the Bible

The ark was empty except for the two stone tablets that Moses had placed there at Horeb when the LORD had made a covenant with the Israelis after they had come out of the land of Egypt.

for this is what the Lord God of Israel says, ‘The flour jar will not become empty and the oil jug will not run dry until the day the Lord sends rain on the surface of the land.”

The flour jar did not become empty, and the oil jug did not run dry, according to the word of the Lord He had spoken through Elijah.