Shipwreck of the Faith (1 Timothy 1:18-20)

What prophecies had been made about Timothy? Why do we not know any more about these prophecies? Why would Paul want to remind Timothy of these prophecies?

What is the good warfare Timothy needed to fight?

Why would rejecting faith and a good conscience lead to shipwreck of the faith?

What is involved in handing one over to Satan? Why would Paul wish to hand Hymenaeus and Alexander over to Satan?

What is blaspheming? Why would someone blaspheme? What might be some modern examples of blasphemy?