1 John 5:5

Continuing to overcome is not automatic for the Christian. Not all Christians continue to overcome the world (cf. 2 Timothy 4:10). Only those who continue to live by faith (i.e., trust and obey God) do. However, no one can overcome the world unless he or she believes that Jesus is the Son of God. It is in this sense that John refers to overcomers here; every Christian overcomes essentially because we believe in Jesus Christ.