John Gill Commentary Mark 1:40

"And there cometh to him a leper, beseeching him, and kneeling down to him, and saying unto him, If thou wilt, thou canst make me clean." — Mark 1:40 (ASV)

And there came a leper to him
After he was come down from a certain mountain, in Galilee, where he had been preaching to the people, (Matthew 8:1) , and when he was in a certain city, (Luke 5:12) , either Capernaum, or some other city of Galilee. This man was full of leprosy, as Luke says, and very probably deemed incurable; of the nature and symptoms of the leprosy, (See Gill on Luke 5:12),

beseeching him ;
to cure him of his leprosy:

and kneeling down to him ;
in token of submission, respect, and reverence, and to worship him:

and saying unto him, if you will you can make me clean ;
(See Gill on Matthew 8:2). Mark omits the word "Lord".