Looking carefully lest anyone fall short of the grace of God; lest any root of bitterness springing up cause trouble, and by this many become defiled. —Hebrews 12:15
In the course of scores of conferences and hundreds of conversations I have many times heard people say, "I resent that." But I repeat: I have never heard the words used by a victorious man. Resentment simply cannot dwell in a loving heart. Before resentfulness can enter, love must take its flight and bitterness take over. The bitter soul will compile a list of slights at which it takes offense and will watch over itself like a mother bear over her cubs. And the figure is apt, for the resentful heart is always surly and suspicious like a she-bear.
Few sights are more depressing than that of a professed Christian defending his supposed rights and bitterly resisting any attempt to violate them. Such a Christian has never accepted the way of the cross. The sweet graces of meekness and humility are unknown to him. He grows every day harder and more acrimonious as he defends his reputation, his rights, his ministry, against his imagined foes.
The only cure for this sort of thing is to die to self and rise with Christ into newness of life. Of God and Men, 105-106.
"Lord, I have all too often seen the destruction caused by resentment that has turned into bitterness—or bitterness turned into resentment. Keep me, I pray, in the way of the cross, the way of meekness and humility. Amen."