'Word of Truth' in the Bible

by love unfeigned, by the word of truth, by the power of God, with the armour of righteousness on the right and on the left; through honor and dishonor,

In whom ye also trusted, when ye heard the word of truth, the gospel of your salvation: in whom also when ye believed, ye were sealed with the holy Spirit of promise,

for the hope which is laid up for you in heaven, of which ye have heard before in the word of truth, that is the gospel;

Endeavour to present thyself approved unto God, a workman that needeth not to be ashamed, rightly dividing the word of truth.

who hath of his own will begotten us by the word of truth, that we might be a kind of first-fruits of his creatures.