Simon Peter said to Jesus, "Lord, where are you going?" Jesus answered, "Where I am going, you can't follow me now, but you will follow later."
References for John 13:36
Peter asked, "Lord, why can't I follow you now? I'll give up my life for you."
Jesus replied, “Will you give up your life for me? I assure you that you will deny me three times before the rooster crows.