When we read about “The word of God” in the new testament, this isn’t usually a reference to the Bible or to scripture but to a person who is known as “The Word of God” or Jesus, the Messiah.
“The Word became flesh and made his dwelling among us. We have seen his glory, the glory of the one and only Son, who came from the Father, full of grace and truth.” (John 1:14)
Now the "Word of God" is being identified as someone who became flesh and made his dwelling among men, namely, Jesus.
These verses below are also examples of the phrase "Word of God" being used in reference to a person (Jesus):
“Then faith comes by hearing, and hearing by the Word of God.” (Romans 10:17)
“For the word of God is alive and active. Sharper than any double-edged sword, it penetrates even to dividing soul and spirit, joints and marrow; it judges the thoughts and attitudes of the heart. Nothing in all creation is hidden from God’s sight. Everything is uncovered and laid bare before the eyes of him to whom we must give account.” (Hebrews 4:11-13)
Probably the most overly quoted verse about the "Word of God" and usually in the context of written passages (the Bible) instead of what it was meant to - a person (Jesus).
Jesus is "alive and active". Jesus "penetrates even to dividing soul and spirit, etc." Jesus is the one who "judges the thoughts and attitudes of the heart." A book can't do those things, even a book as awesome as the Bible.
“I write to you, young men, because you are strong, and the word of God lives in you, and you have overcome the evil one.” (1 John 2:13-15)
Again, the "word of God" that lives in you and me is not a book. It's a person and that person is Jesus.
“When he opened the fifth seal, I saw under the altar the souls of those who had been slain because of the word of God and the testimony they had maintained.” (Revelation 6:8-10)
People were not put to death because of the Bible. They were persecuted for faith in the person of Christ, who is the word of God.
“He is dressed in a robe dipped in blood, and his name is the Word of God.” (Revelation 19:12-14)
In case there was any doubt, we are told that Jesus' name is "the Word of God." We also see that John, who writes the most about this subject, affirms that he is exiled for his faith in Jesus, not because of a book that hasn't been written yet:
“I, John, your brother and companion in the suffering and kingdom and patient endurance that are ours in Jesus, was on the island of Patmos because of the word of God and the testimony of Jesus.” (Revelation 1:8-10)
So what? You might ask. Why does any of this matter? Because the apostles wanted us to understand that it was important to have a relationship with a person named Jesus, not with a book that they were in the process of writing down.
Jesus even warns us not to fall in love with a book, even with the Scriptures:
"You search the Scriptures, because you think you will find eternal life in them. The Scriptures tell about me, but you refuse to come to me for eternal life." (John 5:39-40)
The Word of God is a person. His name is Jesus. Get to know Him.