Therefore whatever you have said in the dark will be heard in the light, and what you have whispered behind closed doors will be proclaimed from the housetops. I tell you my friends, do not fear those who kill the body and after that can do nothing more. (Lk 12:3-4)
This Scripture passage was not only a command, it was a prophesy of things to come, and it did not come to pass until Constantine made Christianity "legal." It's pretty hard to proclaim the Good News from a housetop if someone comes along and arrests you and kills you when you preach! It is clear that the persecution of Christians in the Roman empire was not what Jesus wanted and that it had to change. Constantine was the fulfillment of prophecy (Lk 12:3-4).
https://www.catholicbridge.com/catholic/did_constantine_invent_catholicism.php