On these verses see Numbers 16:31-35. This refers to the time when they rebelled against Moses.

The earth opened and swallowed up Dathan,.... One of the heads of the conspirators against Moses and Aaron; the earth clave asunder under him and his company; opened itself, or its mouth, and devoured them at once. This was a new, marvellous, and unheard of thing, and which manifestly showed the divine displeasure and resentment at their proceedings; and served greatly to confirm the authority and office of Moses and Aaron; see Numbers 16:30.

And covered the company of Abiram; another of the heads of the confederacy. Korah is not mentioned, though the earth swallowed up him and all that belonged to him, their houses and their goods; some think the reason is because it was well known that this was his case, when Dathan and Abiram are not so expressly mentioned in the history by Moses; as also because the sons of Korah were now in esteem as singers; nor is On the son of Peleth mentioned, because, as Kimchi says, he repented, and desisted from the conspiracy.

The earth opened and {i} swallowed up Dathan, and covered the company of Abiram.

(i) By the greatness of the punishment the heinousness of the offence may be considered: for they who rise against God's ministers rebel against him.

17. covered-"closed upon them" (Nu 16:33). (2) Of the Levitical rebels, with Korah at their head (Nu 16:35; 26:10); these had sinned by fire, and were punished by fire, as Aaron's (being high priest) sons had been (Le 10:2; Nu 16:1-35).

106:13-33 Those that will not wait for God's counsel, shall justly be given up to their own hearts' lusts, to walk in their own counsels. An undue desire, even for lawful things, becomes sinful. God showed his displeasure for this. He filled them with uneasiness of mind, terror of conscience, and self-reproach. Many that fare deliciously every day, and whose bodies are healthful, have leanness in their souls: no love to God, no thankfulness, no appetite for the Bread of life, and then the soul must be lean. Those wretchedly forget themselves, that feast their bodies and starve their souls. Even the true believer will see abundant cause to say, It is of the Lord's mercies that I am not consumed. Often have we set up idols in our hearts, cleaved to some forbidden object; so that if a greater than Moses had not stood to turn away the anger of the Lord, we should have been destroyed. If God dealt severely with Moses for unadvised words, what do those deserve who speak many proud and wicked words? It is just in God to remove those relations that are blessings to us, when we are peevish and provoking to them, and grieve their spirits.