Borrowed from scripture and then twisted beyond recognition to support a doomsday cult.
The term "the truth" appears 85 times in the NWT. 72 of these occurrences are in the NT.
In the NT "the truth" refers to a person (Jesus) and the detailed liberating message (gospel) about him.
"The truth" in scripture is the very opposite of what the apostate Watchtower ruling religious clergy class actively promote: legalism, moralism, ethnocentrism, clericalism and magisterium.