Can God provide through betting, and is betting a sin? You cannot limit God’s means of providing for his people. Even though betting is not the ideal means of provision, God can still provide through betting, however, he will do it for various reasons and not necessarily to encourage you to bet or involve yourself in any illegal pursuit.
The reason why God will allow you to win a bet is to prove that he hears your prayer and secondly, he knows your needs. He is training you to trust in him, and that He is for you and not against you. However, when you mature as a Christian you will have to learn to trust in God’s providence and refrain from putting your God to the test.
For example, God used lepers who were outcasts in Israel to provide for the people in Samaria during a seven years siege by the King of Syria. (2 Kings 6:24-33, 7:1-20).
If God has provided for you through winning a bet it doesn’t mean he will always do so.