Logos is one of the most important words in the Greek New Testament. It carries a wide range of meanings: "word," "reason," "account," "speech," "principle," "rationality." In secular Greek philosophy (especially Stoicism), logos referred to the rational principle that orders the universe — a kind of divine reason embedded in creation. In Jewish wisdom tradition, the "Word of the LORD" (Hebrew dabar YHWH) was God's creative and revelatory speech that brought the universe into being ("by the word of the LORD the heavens were made," Psalm 33:6) and that came to the prophets. The apostle John, writing his Gospel, took both streams and unified them in a single stunning sentence: "In the beginning was the Word [Logos], and the Word was with God, and the Word was God... And the Word became flesh and dwelt among us" (John 1:1, 14). This verse declares that Jesus Christ is: (1) eternal ("in the beginning was" — before creation); (2) personal ("was with God" — a distinct person); (3) divine ("was God" — fully God); (4) the means of creation (v. 3); (5) the source of life and light (vv. 4-5); (6) now incarnate — "the Word became flesh." No other sentence in the New Testament packs so much Christology into so few words. The implications are staggering: the rational principle behind the universe, the creative speech of God, the meaning of everything — has a name, a face, and hands pierced with nails. You cannot understand reality until you understand Christ; you cannot fully understand Christ until you understand that He is the Logos.
John 1:1 — "In the beginning was the Word, and the Word was with God, and the Word was God."
John 1:14 — "And the Word became flesh and dwelt among us, and we beheld His glory, the glory as of the only begotten of the Father, full of grace and truth."
1 John 1:1 — "That which was from the beginning, which we have heard, which we have seen with our eyes, which we have looked upon, and our hands have handled, concerning the Word of life."
Revelation 19:13 — "He was clothed with a robe dipped in blood, and His name is called The Word of God."