How is this not hate speech? This man is motivated not by any fundamental set of morals or ideals. He is motivated by his hatred of Christianity. There is absolutely no point in this priest trying to prove the historical existence of Jesus. Christ himself could appear in the courtroom amidst the Heavenly Hosts and this jerk would still not accept it as proof.
He, like many atheists, is in love with the sound of his own voice, is greatly impressed with his own "intellect" and delights in the discomfort of others, specifically Christians. He lives to anger others so he will not be alone in his misery. The priest should ignore the court order.