JMNT(i)
12 Later, it happened for Him to be in one of the towns, and – look and think about this – an adult male full of leprosy [was there]. Now upon seeing Jesus, after falling upon [his] face, he begged (or: from out of his need urgently asked) Him, presently saying, "O Lord (or: Sir; Master), if you should continue willing [it] (or: if you are now wanting to) you continue able (or: constantly have power) to at once make me clean!"
13 And so, stretching out [His] hand He touched him, while saying, "I am now wanting [to], and continue willing and intending [it]. Be at once made clean!" Then immediately the leprosy went away from (or: left) him.
14 And then He gave to him a message at the side: to speak to no one [about this], but rather, "Upon going off (or: away), show yourself to the priest, and bear forward an offering concerning your cleansing – just as arranged and directed by Moses – with a view to evidence for them (or: [leading] into a testimony and a witness to them)."