Robinmk2, gambling isn't a demon, its an addiction, and all addictions become IDOLATRY! The only way a person may become free is through fasting and prayer. He must break the cycle of gambling by keeping himself away, from playing anything which may induce him to wager (gamble). This involves a change of his will! Also, for Agreement in Prayer an adult must request this himself, as even well-meaning may cause a delay in God's Help by praying for someone not committed.

Speak to him!