Karl Keating answers:
How does Matthew 26:29 (when Jesus says that he will not drink the fruit of the vine again until he is in the kingdom) fit with John 19:29 (when he drinks sour wine on the cross)?
Are we supposed to kneel during the consecration?
Can you explain the specifics of how indulgences are efficacious?
Is it acceptable to place a locket of hair from a stillborn child within a reliquary for veneration?
I see people cross themselves at different points in the Mass — how do we know when this is appropriate?
What is purgatory like?
Why doesn’t everyone pay 10% taxes like the Bible says?
How can I find good apologists, resources, and effective debates online?
Are you familiar with Scott Hahn’s theory of the fourth cup? Could you clarify it?
What is the Catholic opinion on creationism and the idea that the earth is 6,000 years old?
Should I be concerned with the accuracy of the New American Bible translation?