What is truth?
The Psalmist sings, The heavens declare your glory, the skies proclaim the work of your hands. Day after day they pour forth speech; night after nighty they reveal knowledge.
In another Psalm, he lifts his voice to heaven and sings again, Your word is fixed in the heavens eternal.
The truth is revealed in all places, throughout the earth. Jesus Christ, the way, the truth, and the life, is known through the Bible, yet his intelligent being, his existence, is known in the consciences of all people.
What is truth? It is that which spoke to Pilate when Jesus did not. Do not avoid it, but listen to its sound. Behold the lilies of the field, how they grow. Behold the skies that proclaim the work of his hands. He created the greater light and the lesser light and the primal light of creation. Behold! And listen to the good news. God has come, God is born from a Virgin Womb and rose from the tomb.