In the Savior’s teachings, He mostly uses the third-person pronoun “this person” when referring to Jo Hee-seong.
The Savior is God—who has overcome the self, the devil, and the power of death—occupying the “old self” and clothed in a human body. Therefore, when the Victorious God speaks, the “old person” named Jo Hee-seong whom we see and hear is simply “this person” (third person) from the perspective of God, who has become the new Master.
In other words, these teachings are not the words of the human Jo Hee-seong, but words spoken directly by God the Savior.