A Carpenter

Jesus was a carpenter for 30 years before he fulfilled his calling as Savior of the World.

1) Jesus was patient as a carpenter, earning his keep and seeking God faithfully day in and day out. Even knowing he was going to be the King of all Kings, he still faithfully fulfilled his position as a carpenter.
2) God molded a carpenter into the Savior of the World. He can do unimaginable things with a Tech Support guy :)
3) God waited 30 years to call His son to become king. We don't need to worry about finding our calling when we're 17 or just out of college or any timeframe. We may be 20, or 60. See 1 above, be patient.