Verses with the word idle in the Old Testament (3 verses):

Exodus 5:8
And the tale of the bricks, which they did make heretofore, ye shall lay upon them; ye shall not diminish ought thereof: for they be idle; therefore they cry, saying, Let us go and sacrifice to our God.

Exodus 5:17
But he said, Ye are idle, ye are idle: therefore ye say, Let us go and do sacrifice to the LORD.

Proverbs 19:15
Slothfulness casteth into a deep sleep; and an idle soul shall suffer hunger.