To call oneself a sinner before God is to admit that one is not a son of God. Those who confess to Jesus, "Lord, I am a sinner," have to reconsider their own faith.
Llamarse a sí mismo pecador ante Dios es admitir que uno no es hijo de Dios. Aquéllos que confiesan a Jesús, Señor, yo soy un pecador, tienen que reconsiderar su propia fe.