John 14:1—Why “Believe also on Me”?

Question: John 14:1. Why “believe also on Me”? Were they not already believers? A Disciple.
Answer: It is the change from Jewish faith to Christian. Henceforward it was to be no longer a present and visible Messiah, but the Lord invisibly known in heaven. As they believed in God without seeing Him, they were now to believe in their Master on high, when they ceased to behold Him here below.