Mark Stengler Jr. is a student at Liberty University where he is studying Biblical Languages. He is the President of Please Tell Me The Truth Ministries. This non-profit organization equips Christians with resources to defend their faith and evangelize biblically and effectively. He has years of street evangelism experience that he shares with his audiences. Mark Stengler Sr. is a licensed naturopathic medical doctor and the author of several bestselling health books. A former host of a national television show, he has also appeared on numerous television and radio shows.

He earned a Master of Religious Studies from Southern California Seminary.