Undoubtedly, from all reports, Forrest was a strong character with a fierce reputation and a propensity for violence. He also generally practiced total abstinence, being rigidly opposed to the use of any type of liquor.
Despite these personal characteristics, several of his reliable and close contemporaries described him as being religious with Christian values.
Fellow Confederate cavalry commander, B-G John Tyler Morgan, who later became a U.S. Senator from Alabama and Forrest's legal adviser, recalled a conversation he had with Forrest in the last year or so of the latter's life in which Forrest said to him, …"I have seen too much of violence, and I want to close my days at peace with all the world, as I am now at peace with my Maker"… Apparently, Forrest also told Morgan that he had for some time been attached to the Cumberland Presbyterian Church, and that he intended to live a peaceful and a better life for the remainder of his days.
(Source - 'Life of General Nathan Bedford Forrest' by John Wyeth at pp 622-23)
Col. David Campbell Kelley, a Minister of the Methodist Episcopal Church who led a cavalry regiment under Forrest (he was known as 'Forrest's fighting preacher') and later served as a pastor of several large Methodist Churches in Tennessee, in the postwar period described Forrest as, …"a thorough believer in Christianity, and was as fully persuaded of the efficacy of prayer in times of danger or in battle……Throughout the war he always gave me the fullest opportunities for preaching in camp, courteously entertaining at his mess-table all preachers whom I might choose to invite. He was always present at such service when it was practicable. While we were messmates there was always family prayer in his tent at night, conducted alternately by the chaplain and myself."…
(Source – Ibid., at page 630)
Dr. James Benjamin Cowan, who was Medical Director of Forrest's Cavalry Corps during most of the conflict, said of Forrest after the war, …"He had always the most profound respect for religion, always had preaching at his headquarters on Sundays if there was a minister at hand, and had prayers in his tent at night. In those days we never started on an expedition but what the men were drawn up in line, and the chaplain, while the heads of all were uncovered, evoked God's blessing on our cause. Nothing called down his ire quicker or brought surer punishment than for a man to disturb religious service in any part of the camp."…
(Source – Ibid., at pp 631-32)
Also liked this story told by Kelley (and reproduced by Wyeth at page 631) about Forrest, which perhaps says something about his views on religion. On one of his expeditions, a chaplain of the Union Army was captured and taken to Forrest's headquarters. The chaplain was understandably deeply anxious and expected to be killed. Instead, Forrest treated him cordially and considerately. Forrest invited the chaplain to share supper and asked the chaplain for the blessing before eating. The following day, Forrest arranged an escort for the grateful and relieved chaplain through the lines and told him he did not make war on non-combatants. As he bade farewell to the chaplain, Forrest reportedly humorously remarked to him, …'Parson, I would keep you here to preach for me if you were not needed so much more by the sinners on the other side"…