Giving is a realistic way to say you are not attached to your money. It’s a way to break your attachment and show God that you choose Him over money. There are many ways to give. You can give to charities (Deuteronomy 15:11). You can give tithes (Deuteronomy 12:19) and if you read Matthew 23:23 and Luke 11:42 you would see that Jesus endorsed giving tithes.