Used in various senses in Scripture. In Proverbs 12:17,19, it denotes that which is opposed to falsehood. In Isaiah 59:14,15, Jeremiah 7:28, it means fidelity or truthfulness. The doctrine of Christ is called "the truth of the gospel" (Galatians 2:5), "the truth" (2 Timothy 3:7; 4:4). Our Lord says of himself, "I am the way, and the truth" (John 14:6).
These dictionary topics are from M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition, published by Thomas Nelson, 1897. Public Domain, copy freely.
Easton, Matthew George. "Entry for 'Truth'". "Easton's Bible Dictionary".