This reminds me of Jonathan Edwards, The former British Triple-Jumper who wouldn't complete for on sundays until he changed his mind and thought this was a message from God.
Edit:
''a decision which cost him a chance to compete in the 1991 World Championships. However in 1993, after much deliberation and discussion with his father (a vicar), he changed his mind, deciding that God gave him his talent in order for him to compete in the 1993 World Championships''.
Source: Wikipedia.