Question: where in the bible does it say to give 10?
Answer: According to Leviticus 27:30 (TLB), “A tenth of the produce of the land, whether grain or fruit, is the Lord's, and is holy.” And Proverbs 3:9 (NIV) says, “Honor the Lord with your wealth, with the firstfruits of all your crops.” The gardening metaphors may have thrown you off, but these verses are essentially saying ...