Now the LORD spoke to Moses, saying,
Directions were given long before this for the making of the golden candlestick (Exo 25:31), and it was made according to the pattern shown to Moses in the mount, Exo 38:17. But now it was that the lamps were first ordered to be lighted, when other things began to be used. Observe, 1. Who must light the lamps; Aaron himself, he lighted the lamps, Num 8:3.
Commenting on Numbers 8:1-4
And the Lord spake unto Moses,.... Whether immediately after the offerings of the princes, or at another time, is not certain; Aben Ezra thinks it was in the night God spake unto him, because then the lamps were lighted and burning: saying; as follows.
And when Moses was gone into the tabernacle of the congregation to speak with him, then he heard the voice of one speaking unto him from off the mercy seat that [was] upon the ark of testimony, from between the two cherubims: and he spake unto him. (h) That is, the sanctuary. (i) According as he had promised in .