Namely, the tent of the testimony — Or, the tabernacle above the tent of the testimony, that is, that part of the tabernacle in which was the testimony, or the ark of the testimony; for there the cloudy pillar stood. This was an evident token of God's special presence with, and providence over them. And this cloud was easily distinguished from other clouds, both by its peculiar figure and by its constant residence in that place. Fire — That they might better discern it and direct themselves and their journeys or stations by it. Had it been a cloud only, it had scarce been visible by night: And had it been a fire only, it would have been scarce discernable by day. But God was pleased to give them sensible demonstrations, that he kept them night and day.
Related Commentaries of Numbers 9:15
Numbers 9:15
15 And on the day that the tabernacle was reared up the cloud covered the tabernacle, namely, the tent of the testimony: and at even there was upon the tabernacle as it were the appearance of fire, until the morning.