Psalms 104:29

Thou hidest thy face, they are troubled,.... God may be said to hide his face from the creatures when he withholds their food from them, when there is a scarcity of provisions, a famine in the land; when there is no pasture for them to feed on, nor brooks of water to drink of; then are they troubled or perplexed, as in Joel 1:18 and know not what to do, nor where to go for help, but faint, and sink, and die. So in a spiritual sense when God hides his face from his people, removes his Shechinah, or divine Majesty and Presence, as the Targum here; and withdraws the influences of his grace and Spirit; or when they have no food for their souls, or what they have is not blessed, then are they troubled, Psalms 30:7.

Thou takest away their breath, they die, and return to their dust; their original dust, from whence they sprung, as man himself does; the breath of all is from the Lord; he gives it to his creatures, and when he pleases he takes it away; and when he does, they die and become dust again.