Malachi says pay tithing, “and prove me now herewith, saith the Lord of hosts, if I will not open you the windows of heaven, and pour you out a blessing, that there shall not be room enough to receive it.”
In my ladies group someone said those windows don’t just help financially but angels will protect and help you too.
John’s response was, “The windows sometimes let things in that aren’t pleasant or comfortable. Sometimes unpleasant circumstances line you up for something you’ll need later. Open your window and a meteor might fly in!”nancymauerman.com