The next day John saw Jesus coming toward him and said, “Look, the Lamb of God, who takes away the sin of the world. This is He of whom I said, ‘After me comes a Man who is preferred before me, for He was before me.’ I did not know Him, but for this reason I came baptizing with water: so that He might be revealed to Israel.”John 1:29–31 — Modern English Version (Thinline Edition.; Lake Mary, FL: Passio, 2014)
In his Gospel, John first introduces us to John the Baptist. John the Baptist then introduces us to Jesus.
The words that John uttered to and about Jesus reveal the truth. Jesus takes away the sins of the world.
Jesus does not take away some of the sins of the world, nor does He take away the sins of some of the world.
Jesus takes away the sins of the world… From Adam to the end.