The Trinity is also implied in the New Testament, though that term is not used. Jesus never explained it fully in his teaching to people, but made a number of claims to be God. The disciple John was one of Jesus' best friends on Earth, so understood Jesus better than many other people. He starts his gospel by saying "In the beginning was the Word. The Word was with God, and the Word was God." He calls Jesus 'the Word' because Jesus was how God told people about himself. In John 8:58, Jesus said "before Abraham was even born, I AM!" I AM is what God said his name was to Moses, meaning that he is always there anywhere in time or space. In John 10:30 and 10:38, he tells people "The Father and I are one." and "the Father is in me, and I am in the Father." Lastly, he forgave people for sins, which only God can do.