Hardon's lack of understanding Protestant theology is only exceeded by his ignorance of Protestant history. He should have stayed with his strong suit, Catholic theology and spirituality. Hubris is a terrible thing to watch in a spiritual director. Maybe he just needed more sleep.
Over the next several years Protestant seminaries and colleges began seeking Fr. Hardon as a visiting professor. Curiously enough, they wanted him to teach Catholic theology; they knew that he was familiar with American Protestantism and also that he was committed to an uncompromising Catholic perspective. While continuing his full-time post at West Baden, Fr. Hardon also accepted visiting professorships at a variety of Protestant schools, including Bethany School of Theology, Lutheran School of Theology, and Seabury-Western Divinity School. In this work he saw an opportunity to share the fullness of the faith with those baptized in Christ who, because of the circumstances of history, time and place, or culture, had yet to receive a complete understanding and appreciation of the Christian faith and of the Church that extends the power and presence of Jesus Christ. "Who do you say I am" (Lk. 9:20)?
Fr. Hardon's experiences in the Protestant seminary were very fruitful. Though his teaching alone did not often bring individuals into a full communion with the Catholic Church, he did find that his Protestant students gained a greater understanding of the Catholic faith, and even began to grasp the sense of the Catholic priesthood. He hoped that they would bring this understanding to bear upon their own Protestant ministries, thus leading their people to a deeper appreciation of the Gospel and a longing for a complete union with the Church; the union that Christ wills for all who are baptized in His name.
Moreover, Fr. Hardon's work in Protestant seminaries was in some respects monumental and ground-breaking. When he first accepted the position at Seabury-Western Divinity school, the Anglican Archbishop of Canterbury sent a personal representative to Chicago to commemorate the event: for the first time in history an Anglican/Episcopalian seminary had appointed a teacher who was a member of the once hated and feared Society of Jesus.
*He spent three hours every day praying/thinking/writing before the Blessed Sacrament. Yss, hubris is just the right word for such a briliant and humble man. In fact, that is why Mother Theresa chose him as her Confessor. It was all because of his "hubris"
*So, you met Fr. Hardon?