Charles Ellicott Commentary Psalms 106:16-18

"They envied Moses also in the camp, [And] Aaron the saint of Jehovah. The earth opened and swallowed up Dathan, And covered the company of Abiram. And a fire was kindled in their company; The flame burned up the wicked." — Psalms 106:16-18 (ASV)

The poet has Numbers 16:17 in his mind.