Matthew 6:23

but if your eyesight is bad, your whole body will be dark. If however the very light within you is darkness, how dense must the darkness be!

2 Peter 2:1-2

But there were also false prophets among the people, as there will be teachers of falsehood among you also, who will cunningly introduce fatal divisions, disowning even the Sovereign Lord who has redeemed them, and bringing on themselves swift destruction.

2 John 1:8-10

Keep guard over yourselves, so that you may not lose the results of your good deeds, but may receive back a full reward.

Treasury of Scripture Knowledge

Summary

He is a leprous man, he is unclean: the priest shall pronounce him utterly unclean; his plague is in his head.

Bible References

Utterly unclean

Matthew 6:23
but if your eyesight is bad, your whole body will be dark. If however the very light within you is darkness, how dense must the darkness be!
2 Peter 2:1
But there were also false prophets among the people, as there will be teachers of falsehood among you also, who will cunningly introduce fatal divisions, disowning even the Sovereign Lord who has redeemed them, and bringing on themselves swift destruction.
2 John 1:8
Keep guard over yourselves, so that you may not lose the results of your good deeds, but may receive back a full reward.