John Ortlund had this great passage written by Puritan theologian, John Owen.
“When the heart is cast into the mould of the doctrine which the mind embraces, . . . when not the sense of the words but of the things is in our hearts, when we have communion with God in the doctrine we contend for, then shall we be garrisoned by the grace of God against all the assaults of men. Without this, all our contending is of no value to ourselves. What am I the better, if I can dispute that Christ is God but have no sense that he is a God in covenant with my soul? . . . It is possible to contend for truth in a spirit most opposite to its nature, and most warmly to advocate the rights of a cause from which we ourselves may derive no benefit. In all cases, it should be remembered, that the wrath of man works not the righteousness of God.”
John Owen, in The Works of John Owen, edited by Thomas Russell (London, 1826), I:164-165.
Two principles in scripture come to mind here… 1. Our struggle isn't against flesh and blood, (Ephesians 6:12). 2. Speak truth with love, (Ephesians 4:15). We can't contend for the truth out of our flesh.