Well somebody did. you can't out give God
The phrase 'you can't out give God' is a design to pilfer the the folk's wallets with the man invented modern tithe.
I know plenty of people down through the years that have out given God. But how can that be? Because the modern tithe is a lie of which neither testament can validate. It will put you under a curse. See: Galatians 3:10
There is no law commanding to give, stay with me, but there is the law of liberty that sets us free from the old covenant laws and ordinances.
Now we are set free by Christ to move and live and have our very being in Him. His laws are written on the fleshly tablets of our hearts, in our spirits.
We now follow the 'still small voice' of the Spirit in all matters of life including our giving.
We don't give to get. We obey His leading and He 'supplies the seed for the sower.' We are already blessed and being blessed by our faith and our obedience to Him. In a word, if we do things His way, not the man made church's way, all our needs are supplied and all our dustribution is directed by Him. I don't give a dime any direction unless He speaks to me to do so.
I gave a large sum to a gal on the street one time because I 'felt like it'. God spanked me good immediately saying 'I didn't tell you to do that'.
Another time I gave a sum to a precious Mexican family, this time, directed by the Holy Spirit. At a grocery store. I was walking to my car when I felt a pair of little arms go round my leg from behind. It was the smallest child of this family. Then the rest of the children followed him and they all started hugging on me. About 5 children. I looked beyond them and saw their father waving at me with a big smile on his face.
The Holy Spirit was thick and precious.
Thats the the kind of giving God wants done. He can use that to reach someone. He can't use faithful tithers in a church for nothing.
Tons of scripture in the old and the new talks about care for the poor. Most Christians can't afford to help the poor because of dumping their tithes into a offering plate shoved under their nose every Sunday morning. The loss of that money and a curse to boot, leaving many saints, not the rich saints, depressed, confused, and scared.
I know what I'm talking about.