Verses with the word idle in the New Testament (5 verses):

Matthew 12:36
But I say unto you, That every idle word that men shall speak, they shall give account thereof in the day of judgment.

Matthew 20:3
And he went out about the third hour, and saw others standing idle in the marketplace,

Matthew 20:6
And about the eleventh hour he went out, and found others standing idle, and saith unto them, Why stand ye here all the day idle?

Luke 24:11
And their words seemed to them as idle tales, and they believed them not.

1 Timothy 5:13
And withal they learn to be idle, wandering about from house to house; and not only idle, but tattlers also and busybodies, speaking things which they ought not.