'Truth' in the Bible

who wants everyone to be saved and to come to the knowledge of the truth.

For this I was appointed a herald, an apostle (I am telling the truth; I am not lying), and a teacher of the Gentiles in faith and truth.

But if I should be delayed, I have written so that you will know how people ought to act in God’s household, which is the church of the living God, the pillar and foundation of the truth.

They forbid marriage and demand abstinence from foods that God created to be received with gratitude by those who believe and know the truth.

and constant disagreement among people whose minds are depraved and deprived of the truth, who imagine that godliness is a way to material gain.