Leviticus 24:2

And thou shalt command the children of Israel, that they bring thee pure oil olive beaten for the light, to cause the lamp to burn always.

The pure candlestick, with the lamps thereof, even with the lamps to be set in order, and all the vessels thereof, and the oil for light,

And he put the candlestick in the tent of the congregation, over against the table, on the side of the tabernacle southward.

Speak unto Aaron and say unto him, When thou lightest the lamps, the seven lamps shall give light over against the candlestick. And Aaron did so; he lighted the lamps thereof over against the candlestick, as the LORD commanded Moses. And this work of the candlestick was of beaten gold, unto the shaft thereof, unto the flowers thereof, was beaten work: according unto the pattern which the LORD had showed Moses, so he made the candlestick.

And ere the lamp of God went out in the temple of the LORD, where the ark of God was, and Samuel was laid down to sleep;