In October of 1958, Angelo Giuseppe Roncalli was elected Pope, taking name John XXIII. He called the historic Second Vatican Council which included revision of the Code of Canon Law. The church fell away from its roots of Platonic philosophy used by St. Frances of Assisi and St. Augustine (neoplatonism also having a huge revival during the Renaissance) and adopted Thomism (of Aquinas) using Aristotle's logic and scientific method as their perennial philosophy. This set the different arms of the church in motion to co-opt Christianity and restructure it based on unifying all religions under the vatican.
Aquinas argued that there is no contradiction between God's providence and human free will:
… just as by moving natural causes [God] does not prevent their acts being natural, so by moving voluntary causes He does not deprive their actions of being voluntary: but rather is He the cause of this very thing in them; for He operates in each thing according to its own nature
What's up is down; what's down is up