In Judaism, the "Word of the Lord" (Devar Adonai) is understood as God's communication to humanity, primarily conveyed through the prophets. It's not just a phrase for spoken language but often appears in a tangible, visible form, indicative of God's direct intervention or presence. In Genesis 15, God's Word comes to Abram in a vision, in Jeremiah 1:9 the Word of the Lord extends His hand and touches Jeremiah's mouth. In 1 Samuel 3, the Word of the LORD comes to Samuel in a vision at night. Ezekiel 1:1-3 tells us that the Word of the Lord came to him in a vision once more.
To claim to be the The Word of the Lord [YAHWEH - יהוה] is more then speaking on Gods behalf, it is a aspect of how God chooses to reveal himself. The similar phrase "word of God" in the biblical context, reflects both the living, active presence of God in the world and the specific messages or commands He imparts. He speaks through His creation (Psalm 19:1), through ancient prophets (Hosea 12:10; Hebrews 1:1), through the Holy Spirit (John 16:13; Ephesians 6:17; Acts 16:6), through Scripture (Hebrews 4:12), and through the person of His Son, Jesus Christ (John 14:9).
Jesus showed a link between the written Word of God and Himself, in that He is the subject of the written Word (John 5:39) and His speech is called the Word of the Lord in Luke 22:61-62 and Acts 11:16. In a vision of glory, John would see Jesus once again called "The Word Of God, and in Revelation 1:2 the word of God is linked with the testimony of Jesus Christ. Revelation 19:11-16 directly calls Jesus the Word of God and leader of heaven's armies, echoing the role attributed to the Angel of the Lord in Joshua 5:13-15.
11. Then I saw heaven opened, and behold, a white horse! The one sitting on it is called Faithful and True, and in righteousness he judges and makes war. 12. His eyes are like a flame of fire, and on his head are many diadems, and he has a name written that no one knows but himself. 13. He is clothed in a robe dipped in blood, and the name by which he is called is The Word of God. 14. And the armies of heaven, arrayed in fine linen, white and pure, were following him on white horses. 15. From his mouth comes a sharp sword with which to strike down the nations, and he will rule them with a rod of iron. He will tread the winepress of the fury of the wrath of God the Almighty. 16. On his robe and on his thigh he has a name written, King of kings and Lord of lords.
John starts his gospel with Jesus being described as the eternal Word, existing with God from the beginning and being divine Himself (John 1). It was in the beginning that Jesus [The Word Of God] made the world (Hebrews 11:3).The consistent reference to Jesus as the Word, reveal His divine nature and identity as God Himself.