renounce

to give up, refuse, or resign usually by formal declaration

1.Many of his former supporters have renounced him.

2.He renounced his old way of life.

Renouncing Lucifer

Renouncing Lucifer is the process of someone giving up an acceptance of Satanism and Lucifer.

The man is in the process of renouncing Lucifer in order to no longer be a Satanist.