Binitarianism is something people believe about God. It's a kind of religion. A binitarian believes there is only one God, but this God has two parts - one part is called Father, and the other part is called Son. The Father and the Son are like two different people, but they are still the same God. Binitarians believe that Jesus was the Son of God, and that he was born when the Father sent him down to Earth. People who believe in binitarianism believe in a very loving God who loves us and is always there for us.