Note 4 at Mk. 1:42: Faith is released by speaking words (Gen. 1:3,6,9,11,14,20,22,24,26; Prov. 18:20-21; Rom. 10:8-10; 2 Cor. 4:13). The faith that made Jesus marvel was a faith in the authority of the spoken word (Mt. 8:8,10). We shall have whatsoever we say (qualified by Jas. 4:3) if we believe and doubt not in our heart (Mk. 11:23). This leper was healed as soon as Jesus had spoken.

Note 5 at Mk. 1:42: As can be seen from Mark's account, two things happened. (1) The leprosy departed and (2) the man was cleansed. Jesus not only removed the disease but restored the damaged parts of his body