OT-PROPHET-MINOR.filter - kjv darken:

kjv@Joel:3:15 @ The sun and the moon shall be darkened, and the stars shall withdraw their shining.

kjv@Amos:8:9 @ And it shall come to pass in that day, saith the Lord GOD, that I will cause the sun to go down at noon, and I will darken the earth in the clear day:

kjv@Zechariah:11:17 @ Woe to the idol shepherd that leaveth the flock! the sword shall be upon his arm, and upon his right eye: his arm shall be clean dried up, and his right eye shall be utterly darkened.