Titus 1:15 To the pure, everything is pure, but to those who are defiled and unbelieving nothing is pure; in fact, both their mind and conscience are defiled. Tifus 1:16 They claim to know God, but they deny him by their works. They are detestable, disobedient, and unfit for any good work.
Context Summary:
Titus 1:10–16 explains the proper way to deal with false teachers. On the island of Crete, some men taught that circumcision was required for Christians, which caused entire families to fall apart in argument. Titus is commanded to counter these claims strongly—to “rebuke them sharply.” The purpose of this response was to lead people to correct doctrine.
source:https://www.bibleref.com/Titus/1/Titus-1-16.html
My conclusion: Another example of belief manipulation.