What encyclical upheld God's sovereignty over the regularity of natural laws?

Somewhere in my readings (I forget exactly where) I came across the following chain of events: 1) The Philosophy of Aristotle regarding the regularity of science --- scientific laws can be relied upon for future predictions --- acquired acceptance in the Catholic Church thanks to St. Thomas Aquinas. 2) The philosophy of St. Thomas Aquinas acquired great deference, to the point of being mentioned very favorably in a council decree. 3) Science gained prominence as a reliable explanation of many aspects of the world. 4) Someone(?) proposed that God had setup the material world to obey the scientific laws, and that therefore those laws could not be violated, even by God. 5) Against this, the Pope of the time issued some kind of document saying that God is sovereign, and is not Himself bound by the regular laws he established for nature, and that therefore He is free to act independent of these laws in specific instances (or to abrogate them entirely?). I am looking for the name of the encyclical (or other similar document) mentioned in (5). Hopefully someone will have its name. Thanks!