Nothing can ever pass away from the words of Christ, nor can anything be changed in the doctrine which the Catholic Church received from Christ to guard, protect, and preach.
The Bible, however, was not created to be amended and altered with each passing culture.
A divine revelation must necessarily be intolerant of contradiction; it must repudiate all improvement in itself, and view with disdain that arising from the progressive intellectual development of man.
The saving principles and doctrines of the Church are established, fixed, and unchangeable.
The Church of Christ, zealous and cautious guardian of the dogmas deposited with it, never changes any phase of them. It does not diminish them or add to them; it neither trims what seems necessary now grafts things superfluous . . . but it devotes all its diligence to one aim: To treat tradition faithfully and wisely; to consolidate and to strengthen what already was clear; and to guard what already was confirmed and defined.
Christianity has stayed stable, as it must do. The doctrines don't change. The understanding of what it means to walk with God doesn't change. The reality of worship doesn't change, not at heart, anyway. So Christianity appears to be stuck.
The essence of science is that it is always willing to abandon a given idea for a better one; the essence of theology is that it holds its truths to be eternal and immutable.
The Gospel has never changed.
