From the onset of the public ministry of Jesus, we assume that Jesus was a carpenter because that was Joseph's occupation. Mark 6:3 talks of the people questioning whether this is not the carpenter, son of Mary. This easy question shows a strong fact on the early life of Jesus.
Jesus lived a normal life before teaching masses, healing those who are sick and performing miracles and he did the trade by his hands.
In the early life of Jesus, it was all about construction of doors, roofs, farm tools and mending of broken objects.
Jesus experienced sweat and patience. He knew how to work hard, be disciplined and be responsible. He made his daily bread just like any other working man in the society.
This teaches us that fraudulent work is not God honouring. Jesus was not in a hurry to become famous or a minister, he spent several years to make his preparations in silence, to serve His family and to benefit the society. To live in the world where everyone tends to loath poor origin, the life of Jesus is a lesson that people find dignity not in titles but in the purpose of being.
The fact that Jesus was a carpenter makes us understand that God appreciates work, humility and preparation.