Lord god of truth.
The Almighty is the ultimate source of reality. Everything that relates to Him is true and is real.
Psalms 31:6.
What is the truth? It is defined as that which fits with facts or reality. It is about authenticity, veracity or reality. In a word, truth is reality. It is about how things really are. Theologically, truth is that which is consistent with the mind, will, character, glory, and being of God. The truth is the self-revelation of God Himself. It is what it is because God says so, and He did so. All truth must be defined in terms of God, whose nature is truth. What is the value of truth? Its value is "more precious than gold, than much pure gold" (Psalms 19:10). John Calvin says, "Nothing is considered more precious to God than the truth." No one can be saved without the truth. No one can be sanctified or strengthened without it.