Suppose that over time, a culture began to see forgiveness as simply moving on with a sense of tolerance. Have the people in that culture then changed what forgiveness is? After all, the current thinking in psychology and philosophy is that forgiveness is a moral virtue of goodness toward those who have been unjust.
I think it is impossible to alter the essence of forgiveness, no matter what happens in a particular culture or in a particular historical moment. We could, I suppose, see forgiveness as a relative concept, flexible in its meaning depending on the consensus of a group at a certain point in time, but that would be to invite error.
Here is what I mean: To label forgiveness as “moving on with a sense of tolerance” will mean that forgiveness is now equated with other terms, such as acquiescence and, as part of this definition, tolerance. Yet, forgiveness never gives in or acquiesces to wrong doing, but instead labels the wrong as wrong. Forgiveness never tolerates injustice but instead labels the injustice as unjust.
When it appears that a given group is defining forgiveness in an odd way, ask yourself this question: What else might this definition represent other than forgiveness? If you come up with a sound answer, then I urge you to stand firm in the truth of what forgiveness is, despite protests and even ad hominem attacks on you as a person.
Forgiveness is what it has been, what it is currently, and what it will be long after each one of us reading this post is gone from this world.