Jn 14:6, Jn 1:14
In the Old Testament, the psalmist confessed that the Word of God is the truth. (Psalms 119:160)
Psalms 119:160 Thy word is true from the beginning: and every one of thy righteous judgments endureth for ever.
Jesus is the Word of God who became flesh and came to this earth. (John 1:14)
John 1:14 And the Word was made 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.
Jesus is the truth. (John 14:6)
Jn 14:6 Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.