Psalms 106:17

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.

The earth opened and swallowed up Dathan, and covered the company of Abiram. Korah is not mentioned, for mercy was extended to his household, though he himself perished. The earth could no longer bear up under the weight of these rebels and ingrates: God's patience was exhausted when they began to assail his servants, for his children are very dear to him, and he that toucheth them touches the apple of his eye. Moses had opened the sea for their deliverance, and now that they provoke him, the earth opens for their destruction. It was time that the nakedness of their sins was covered, and that the earth should open her mouth to devour those who opened their mouths against the Lord and his servants.