Moses
Exodus 27:20ESV·traditional attribution

“You shall command the people of Israel that they bring to you pure beaten olive oil for the light, that a lamp may regularly be set up to burn.

John Calvin Reformed @genevareformer

Exodus 27:20 And thou shalt command the children of Israel. I have transferred these two passages from elsewhere, since they relate to the service of the tabernacle; for the children of Israel are commanded to contribute as much oil as may be sufficient for the seven lamps.

Matthew Henry Presbyterian @wholebiblehenry

We read of the candlestick in the twenty-fifth chapter; here is an order given for the keeping of the lamps constantly burning in it, else it was useless; in every candlestick there should be a burning and shining light; candlesticks without candles are as wells without water or as clouds without rain. Now, 1. The people were to provide the oil; from them the Lord's ministers must have their maintenance.

Commenting on Exodus 27:20-21

John Gill Reformed Baptist @doctorgill

And thou shall command the children of Israel,.... Here begins a new section of the law; an account being given of the tabernacle, and its parts, and the furniture thereof, next the several parts of service done in it are observed; and the account begins with that of the candlestick in the holy place, in order to which Moses is directed to command the people...