'Blind' in the Bible

The king and his men went to Jerusalem, to the Jebusites, the inhabitants of the land. They said to David, "You will not come here, for even the blind and the lame can turn you back, saying, 'David cannot come here.'"

David had said, "On that day {when we attack the Jebusites}, one must attack the lame and the blind, [those] who hate the soul of David, by [means of] the water supply." For thus the blind and the lame would say, "He cannot come into the house."