'Blind and the Lame' in the Bible

And the king and his men went to Jerusalem to the Jebusites, the people of the land. And one spoke to David saying, You shall not come in here, except the blind and the lame will turn you away; also saying, David cannot come in here.

And David said on that day, Anyone who strikes the Jebusite, let him go by the water-shaft and take the lame and the blind, the hated of David's soul. On account of this they say, The blind and the lame shall not come into the house.