If you were baptized in a Protestant church, do you need to be re-baptized after becoming Catholic? Jimmy Akin explains Church teaching and answers more questions on the Great Apostasy, Torah observance, and whether being late to Mass is a sin.

Questions Covered:

01:55 – A Jewish friend said that everything went wrong after the Apostles. Was that the Great Apostasy? How should I respond?
07:21 – How is sedevacantism, the SSPX, and the Fatima Secret related to Malachi Martin?
14:22 – I heard once that the unforgivable sin is becoming an atheist. What is the Catholic stance on this?
20:42 – What is the relationship between the Knights of Columbus and the Catholic Church? Is it okay to celebrate deceased parents and loved ones and say they are together in heaven?
28:50 – If I was baptized in a Protestant church and then converted to Catholicism, is my baptism valid?
31:19 – How do I reach my brother who has recently converted to Torah observance?
38:23 – My LDS friends would say “know them by their fruits” as a reason to convert to Mormonism; how do I respond to that?
46:45 – Is it a sin to be late to Mass?
49:58 – How do I respond to the claim “Jesus’ crucifixion paid all debts, including temporal ones”?

IF I COULD START OVER, WHAT WOULD I DO DIFFERENT?