Why would a Shepherd (instead of a carpenter) be hammering nails (Ecclesiastes 12:11-12)?

 Question: Why would a Shepherd (instead of a carpenter) be hammering nails (Ecclesiastes 12:11-12)?

See Answers: http://ebible.com/questions/24850?ori=664697

https://biblia.com/bible/niv/2-peter/1/20-21