You show him in the word where it is a sin, If he does not listen, You take a witness. If that does not work. You pray the church confronts him (if they refuse, they are not a church of God and you need to find a different church)
Yes, and a good place in Scripture to start is:
Matthew 13:1) The same day went Jesus out of the house, and sat by the sea side.
2 .) And great multitudes were gathered together unto him, so that he went into a ship, and sat; and the whole multitude stood on the shore.
3 .) And he spake many things unto them in parables, saying, Behold, a sower went forth to sow;
4 .) And when he sowed, some seeds fell by the way side, and the fowls came and devoured them up:
5 .) Some fell upon stony places, where they had not much earth: and forthwith they sprung up, because they had no deepness of earth:
6 .) And when the sun was up, they were scorched; and because they had no root, they withered away.
7 .) And some fell among thorns; and the thorns sprung up, and choked them:
8 .) But other fell into good ground, and brought forth fruit, some an hundredfold, some sixtyfold, some thirtyfold.
9 .) Who hath ears to hear, let him hear.
Truth is, this parable speaks of many today....................
