As long as a believer is worrying about whether or not they are truly saved, they will never grow up in spiritual maturity. It basically guarantees that a Christian will remain stuck in spiritual infancy. And worse, it paints a picture of God that is not only untrue but also unbiblical. It cheapens the gift of salvation – the gift of grace – and make God look like a finicky human.
Will Davis (2011). “10 Things Jesus Never Said: And Why You Should Stop Believing Them”, p.150, Revell