The central teachings of traditional Christianity are that Jesus is the Son of God, the second person of the Trinity of God the Father, the Son, and the Holy Spirit; that his life on earth, his crucifixion, resurrection, and ascension into heaven are proof of God's love for humanity and God's forgiveness of human sins; and that by faith in Jesus one may attain salvation and eternal life (see creed). This teaching is embodied in the Bible, specifically in the New Testament, but Christians accept also the Old Testament as sacred and authoritative Scripture.