The modernists use the term “living” to squirm their way into the idea that truth can change. They say the magisterium is “living”, meaning that whatever the current magisterium says, is truth. Therefore, it follows that the church can be “updated” because the “living” magisterium needs to teach truth “for the modern man”. No! This is relativism and humanism mixed together.
Everything that we need to believe to get to heaven has been known by Catholics since the 1st century. THERE ARE NO NEW CATHOLIC TRUTHS. Therefore, the need for a “living” magisterium is a lie. What is true is always true, and it has been true since the day Christ ascended into heaven and will be true until He comes again at the end of time.