In Malachi 3:10, God says this: “Bring the whole tithe into the storehouse, that there may be food in my house. Test me in this,” says the LORD Almighty, “and see if I will not throw open the floodgates of heaven and pour out so much blessing that there will not be room enough to store it.” This is the only place in Scripture where God tells us to put him to the test.
In other words, He’s saying, “Go ahead. I dare you. See if you can out-give me.”