I can point to Maggie’s testimony about how God took care of her when she was in desperate straights, and to Rich Stearns, who was not looking for God’s intervention. George Müller’s whole life was an apology. (I love that face! 
look for his autobiography there.)
But since God uses his children to help others, is there a church you can connect with?
I just asked my wife to, and I am and have.