Truth : That which is true, factual or genuine.
Truthful: Telling the truth; accurate, realistic, honest.
As Christians we believe that every word in the Bible is true. It is the Word of God, and this is the foundation in which we live. Jesus said: " I am the way and the truth, and the life. No one comes to the Father except through me.[John 14:6]
The Bible is the Word of Truth.
Psalm 119:160
All Your words are true; all Your righteous laws are eternal.
Daniel 10:21
But I will tell you what is inscribed in the writing of truth {The Book of Truth}. There is no one who holds with me and strengthens himself against these [hostile spirit forces] except Michael, your prince [national guardian angel]. AMP
John 17:7
Sanctify them by the Truth; Your Word is Truth.
Ephesians 1:13- 14
In whom ye also trusted after that ye heard the Word of Truth, the gospel of your salvation; in whom also after that ye believed, ye were sealed with the Holy Spirit of promise. Which is the earnest of our inheritance until the redemption of the purchased possession, unto the praise of His glory.[K.J.V]
James 1:18
He chose to give us birth through the Word of Truth, that we might be a kind of firstfruits of all he created.
