Walk through Amos, verse by verse, with the great Bible Commentaries of Matthew Henry (1662 - 1714) & Adam Clarke (1760 - 1832)
8:11
Behold, the days come, saith the Lord GOD, that I will send a famine in the land, not a famine of bread, nor a thirst for water, but of hearing the words of the LORD: KJV
{ Lo! the days come, saith the Lord [God], and I shall send out hunger into (the) earth; not hunger of
bread, neither thirst of water, but of hearing the word of God} Wycliffe's Bible
A famine in the land - The most grievous of all famines, a famine of the words of Jehovah; a time in which no prophet should appear, no spiritual counsellor, no faithful reprover, none any longer who would point out the way of salvation, or would assure them of the mercy of God on their repentance and return to him.