Not sure...needed to continue to define it.
It’s called, “the development of doctrine”, look it up with Blessed John Henry Cardinal Newman.
If Paul taught the “Whole Counsel of God”, then what was left to develop? The “Whole Plus Some”?
The Heresy of Ba’al of Peor was the planned, sexual corruption of the Hebrews who were invincible when they were on God’s side. That specific instance became a type for the priests, an “object” in computerese, with Malachi 2:3: “I will smear the dung of your sacrifices on your faces,” because the sons of Levi had neglected to properly instruct the people. On Roe v Wade day of 2014, I heard a priest, positively wailing his homily, knowing that he would get slammed, because the Lord had instructed him to give the whole truth, including that abortion is pre-natal homicide, including that every act of the marital embrace must be open to human life; this priest dared not neglect the Lord’s command, the priest voluntarily took upon himself the responsibility, now he would be judged for it. The end of all we see, the destruction of the Vatican with its historical and art treasures, will be because you can never hear “the homily” about which the few young couples who do get to hear it remark, “why weren’t we told”?