In the beginning, there was the logos (i.e. the word) which was spoken by God
In the O.T., the word (logos) came to the prophets (Micah 1:1 LXX, Ezekiel 1:3 LXX, Zachariah 7:8 LXX). The word (logos) came to the angels too (John 10:35).
John 10:35 (NRSV) If those to whom the word of God came were called ‘gods’—and the scripture cannot be annulled.
The phrase ''to whom the word of God came'' is ὁ λόγος τοῦ Θεοῦ ἐγένετο in Greek. This meant that prophets and angels were spokepersons in behalf of God, speaking the words of God to the people in behalf of God. Jesus was like them in that Jesus also is God's spokeperson. All of these received the word of God and shared them to the people.
Jesus is ''the Word'' because instead of God uttering words through his own voice, God speaks through a person, Jesus Christ. Jesus is way better than the other spokepersons of God (i.e. the prophets and the angels) because
If the logos became flesh, it only means that the logos evolved (changed into something) from the utterance of God (giving of the message) to the utterance of the messenger: ''Whoever does not love me does not keep my words. And the word that you hear is not mine but the Father’s who sent me.'' (John 14:24)
