Verses with the word leper in the New Testament (4 verses):

Matthew 8:2
And, behold, there came a leper and worshipped him, saying, Lord, if thou wilt, thou canst make me clean.

Matthew 26:6
Now when Jesus was in Bethany, in the house of Simon the leper,

Mark 1:40
And there came a leper to him, beseeching him, and kneeling down to him, and saying unto him, If thou wilt, thou canst make me clean.

Mark 14:3
And being in Bethany in the house of Simon the leper, as he sat at meat, there came a woman having an alabaster box of ointment of spikenard very precious; and she brake the box, and poured it on his head.