Did the disciples believe that Jesus was God or a prophet? I presume that their opinion changed when he died. They called Jesus lord, however lord is a somewhat common title back then.
The New World Translation of John 1 seems to indicate that Jesus was a separate god from the Father. 1 In [the] beginning the Word was, and the Word was with God, and the Word was a god. 2 ...
In John 17:3 it says that Jesus called the Father the "only true God" and called himself sent by the Father. Also, in Matthew 4:10, Jesus himself says to: ‘Worship the Lord your God, and serve ...