Exodus 27:21 BBE

¹⁹  All the instruments for the work of the House, and all its nails, and the nails of the open space are to be of brass.

²⁰  Give orders to the children of Israel to give you clear olive oil for the lights, so that a light may be burning there at all times.

²¹  Let Aaron and his sons put this in order, evening and morning, before the Lord, inside the Tent of meeting, outside the veil which is before the ark; this is to be an order for ever, from generation to generation, to be kept by the children of Israel.