'Word of Truth' in the Bible

And take not the word of truth utterly out of my mouth; for I have hoped in your judgments.

By the word of truth, by the power of God, by the armor of righteousness on the right hand and on the left,

In whom you also trusted, after you heard the word of truth, the gospel of your salvation: in whom also after you believed, you were sealed with that Holy Spirit of promise,

Study to show yourself approved unto God, a workman that needs not to be ashamed, rightly dividing the word of truth.

Of his own will begat he us with the word of truth, that we should be a kind of firstfruits of his creatures.