According to Christ, believing "in" Him is NOT enough:-
Matthew 16:27
For the Son of Man shall come in the glory of his Father with his angels; and then he shall reward every man according to his WORKS.
Revelation 20:12-13
20:12 And I saw the "Dead", small and great, stand before God; and the books were opened: and another Book was opened, which is [the Book] of Life: and the "Dead" were judged out of those things which were written in the Books, according to their works.
20:13 And the "sea" gave up the "Dead" which were in it; and death and hell delivered up the dead which were in them: and they were judged every man according to their WORKS.
Christ told NOT to think He came to destroy The Law and that heaven and earth would pass before The Law changed in the slightest way. He also said that anyone who teaches others to break e Commandments/Law was the lowest of the low in God's Eyes (
Matt. 5:17-20).
Anyone who is not living by The Commandments found within The Law, and claims to know Jesus is a liar and the truth is not in them.
I John 2:3-4
2:3 And hereby we do know that we know him, IF we keep His Commandments.
2:4 He that saith, I know him, and keepeth NOT His Commandments, is a LIAR, and the truth is NOT in him.
The reason our bodies get sick is because of sin (i.e. not keeping The Law -
1 John 3:4), so logically the only way to heal them is to stop sinning/breaking The Law.
John 5:5-14
5:5 And a certain man was there, which had an infirmity thirty and eight years.
5:6 When Jesus saw him lie, and knew that he had been now a long time [in that case], he saith unto him, Wilt thou be made whole?
5:7 The impotent man answered him, Sir, I have no man, when the water is troubled, to put me into the pool: but while I am coming, another steppeth down before me.
5:8 Jesus saith unto him, Rise, take up thy bed, and walk.
5:9 And immediately the man was made whole, and took up his bed, and walked: and on the same day was the Sabbath.
5:10 The Jews therefore said unto him that was cured, It is the Sabbath day: it is not lawful for thee to carry [thy] bed.
5:11 He answered them, He that made me whole, the same said unto me, Take up thy bed, and walk.
5:12 Then asked they him, What man is that which said unto thee, Take up thy bed, and walk?
5:13 And he that was healed wist not who it was: for Jesus had conveyed himself away, a multitude being in [that] place.
5:14 Afterward Jesus findeth him in the Temple, and said unto him, Behold, thou art made whole:
sin no more, lest a WORSE thing come unto thee.
This isn't being shared to preach, only to help.
Healing in His Wings