From Genesis to Revelation and every word of God in between endures forever. The entirety of God’s word is truth. And why not? God is truth and those that worship Him must worship Him in spirit and in truth. Jesus Christ? I am the way, the truth, and the life. No one comes to the father except through me according to John 14:6. What about the Holy Spirit? When he the spirit of Truth has come he will guide you into all truth. The Triune godhead completely consists of Truth. There you have it. God, Jesus Christ, the Holy Spirit, and the Bible are all Truth for the believer. The question remains as to how much you need to brush up on your truth decay?