Should Christians refer to other Christians as sinners or be referred to as sinners ? In the four gospels I know of no scripture that Christ referred to one of his children as a sinner. When Christ spoke to or about the lost he referred to them as sinners but in 1 Tim 1:15 Paul referred to himself as the chief of sinners. Most grace people refer to themselves sometimes as just a sinner saved by grace. I know of certain Christians that refer to a person out of Christ as, the lost or not saved but never do they refer to them as a sinner because they reserve this word for themselves.