Nietzsche's solution is changing this morality against instincts to a morality in favour of them, naming the process of transvaluation of Christian values.
Nietzsche modifies his definition: that transvaluation be as what he was defined, but he sees the need of new values, and “new values” is not necessarily opposite of “ancient values”, it is enough be different. In summa, Nietzsche preaches for revision of Christian morality, not necessarily in direction to opposite moral values, immorality.
Nietzsche uses several times “immorality,” he confounds himself and consequently confounds the reader. Observing that theologians operate “transvaluation” of true and false, that is, they transform in false what is true, Nietzsche make evident that the concepts should be valued by changing the value “true or false,” that is, what is true should be valued as false, and vice-versa, not that the concepts should be considered by its inversion, its contraries. Following, Nietzsche asserts the need of new values: if what is true by transvaluation one considers false, then it is necessary a new concept