“In that day the lovely virgins and the young men shall faint for thirst.  Those who swear by the Guilt of Samaria, and say, ‘As your god lives, O Dan,’ and, ‘As the Way of Beersheba lives,’ they shall fall, and never rise again.” (Amos 8:11-14)

God is promising to send a time when his word is going to be scarce.  People will want to hear a word from him, but nothing will be found.  And people who live by false gods (or false versions of God) will be destroyed never to rise again.

People try to find fulfillment in the false gods they make for themselves all the time.  Whether that god be money or fame or power, or searching for all of the answers to the Big Questions in nature itself (atheism), these gods ultimately never satisfy the thirst.

Looking at Psalm 63, we can see what happens to those who hunger and thirst for righteousness from the One True God:

O God, you are my God; earnestly I seek you; my soul thirsts for you; my flesh faints for you, as in a dry and weary land where there is no water.  So I have looked upon you in the sanctuary, beholding your power and glory.  Because your steadfast love is better than life, my lips will praise you.  So I will bless you as long as I live; in your name I will lift up my hands.