Putting God to the test?

Malachi 3 NIV

6 “I the LORD do not change. So you, O descendants of Jacob, are not destroyed.
7 Ever since the time of your forefathers you have turned away from my decrees and have not kept them. Return to me, and I will return to you,” says the LORD Almighty. “But you ask, ‘How are we to return?’
8 “Will a man rob God? Yet you rob me. “But you ask, ‘How do we rob you?’ “In tithes and offerings.
9 You are under a curse —the whole nation of you—because you are robbing me.
10 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 you will not have room enough for it.
11 I will prevent pests from devouring your crops, and the vines in your fields will not cast their fruit, ” says the LORD Almighty.  
12 “Then all the nations will call you blessed, for yours will be a delightful land,” says the LORD Almighty.

Until you experience the blessing God gives in response to tithing you may be reluctant to give God back His ten percent of what He gives you.  At least that's what I think my sons are experiencing.

Several years ago I challenged my older son when he was about 12 years old, to test God and see what God would do if my son tithed. My son tithed seven dollars and we watched what God would do.  God said to test Him in this and so we did.  Within a few days I was given four free tickets to a first run major kids' movie.  God blessed not only my son, but his brother and mom and dad.

I didn't stick with teaching this to my son and now, ten years later,  my son is not interested in tithing.  I don't plan on giving up on teaching him and his younger brother though.  My wife and I are going to double tithe and ask God to bless my wife and I doubly (so that we doubly don't have enough room for it) so that my sons will see that God can be tested and also see that God comes through on His promises.  This test will be for the month of September 2013.  I will report back with developments.