Amos 7:14-16

14Then answered Amos, and said to Amaziah, I was no prophet, neither was I a prophet’s son; but I was an herdman, and a gatherer of sycamore fruit:1 15And the LORD took me as I followed the flock, and the LORD said to me, Go, prophesy to my people Israel.2 16Now therefore hear thou the word of the LORD: Thou sayest, Prophesy not against Israel, and drop not thy word against the house of Isaac.