Question: Did Jesus tell his disciples everything about his father?
Jesus told his disciples everything about his father.
John 15:15 - "For all things that I have heard of my Father I have made known unto you."
There were some things that Jesus didn't tell them about his father.
John 16:12 - "I have yet many things to say unto you, but ye cannot bear them
Response: One possible way to view these two verses is that Jesus learned more things from the Father after He spoke the words recorded in John 15:15.