Deuteronomy 27:18
"Cursed be he that maketh the blind to wander out of the way. And all the people shall say, Amen."
Cross References (ranked by relevance)
Thou shalt not curse the deaf, nor put a stumblingblock before the blind, but shalt fear thy God: I am the LORD.
Let them alone: they be blind leaders of the blind. And if the blind lead the blind, both shall fall into the ditch.
Whoso causeth the righteous to go astray in an evil way, he shall fall himself into his own pit: but the upright shall have good things in possession.
His watchmen are blind: they are all ignorant, they are all dumb dogs, they cannot bark; sleeping, lying down, loving to slumber.
I was eyes to the blind, and feet was I to the lame.
But I have a few things against thee, because thou hast there them that hold the doctrine of Balaam, who taught Balac to cast a stumblingblock before the children of Israel, to eat things sacrificed unto idols, and to commit fornication.