Leviticus 24:1-4

1 AND the Lord spake unto Moses, saying, 2 Command the children of Israel, that they bring unto thee pure oil olive beaten for the light, to cause the lamps to burn continually. 3 Without the vail of the testimony, in the tabernacle of the congregation, shall Aaron order it from the evening unto the morning before the Lord continually: it shall be a statute for ever in your generations. 4 He shall order the lamps upon the pure candlestick before the Lord continually.