The greatest difference between the portraits of Jesus according to Matthew, Luke, Mark and John is that whereas Matthew, Luke and Mark paint portraits of Jesus as a natural man who has elements of divinity, John paints a portrait of Jesus as divine and the earthly extension of God.
For instance, Matthew Chapter 1 presents the most extensive tracing of Jesus's genealogy in order to establish his earthly authority, whereas John Chapter 1 presents the divine "genealogy" of Jesus by identifying him as the "Word" and associating him with an active part in the Creation in order to establish his divine spiritual authority:
[The] Word was with God, and the Word was God. He was with God in the beginning. Through him all things were made; without him nothing was made that has been made. ... The Word became flesh and made his dwelling among us .... (John 1:1-3 & 14 New International Version)
In contrast, Luke Chapter 1 begins "to draw up an account of the things" (NIV) that...
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