That injuries be borne without losing the quietness and repose of our own minds and hearts. - They should not only be borne without a rough behaviour, but with a continuance of inward calmness and repose of spirit. When the injuries we suffer are allowed to disturb our calmness of mind, and put us into an excitement and tumult, then we cease to bear them in the true spirit of long-suffering. If the injury is permitted to discompose and disquiet us, and to break up our inward rest, we cannot enjoy ourselves, and are not in a state to engage properly in our various duties; and especially we are not in a state for religious duties - for prayer and meditation. And such a state of mind is the contrary of the spirit of long-suffering and meekly bearing of injuries that is spoken of in the text. Christians ought still to keep the calmness and serenity of their minds undisturbed, whatever injuries they may suffer. Their souls should be serene, and not like the unstable surface of the water, disturbed by every wind that blows.
Jonathan Edwards, Charity and Its Fruits pp.73-74