Problem: John portrays Jesus as the vine of which believers are the branches. But elsewhere the Bible calls Him a “root out of dry ground” (Isa. 53:2).
Solution: Both of these are appropriate figures of Christ, each describing a different aspect of His ministry. Jesus was a root (source of life) in relation to the vine (Israel) in the OT. But He is the vine in which believers abide for spiritual life in the NT (John 15:1, 3).