Footnote 1

He [God] is the truth in its absolute fullness. He, therefore, is the primary, the original truth, the source of all truth, the truth in all truth. He is the ground of the truth – of the true being – of all things, of their knowability and conceivability, the ideal and archetype of all truth, of all ethical being, of all the rules and laws, in light of which the nature and manifestation of all things should be judged and on which they should be modelled. God is the source and origin of the knowledge of truth in all areas of life.

Herman Bavinck: “Reformed Dogmatics”