Jesus half brothers are James, Joseph, Simon and Judas. Before all of them travel with Jesus and with his other disciples to Capernaum, they stop at their home in Nazareth to pack the things that they need during their journey.
Capernaum is more prominently situated and is evidently a larger city and most of Jesus’s newly acquired disciples live near Capernaum.
During his stay in Capernaum, Jesus performed wonderful work and one day they are on their way to Jerusalem to attend the Passover Festival. During this time, the Israelities are required to make animal sacrifices. So for their convenience, merchants in Jerusalem sell animals or birds for this purpose.
They sell right inside the temple and they are cheating the people by charging them more expensive.
Fill with anger, Jesus makes a whip of ropes and chase the sellers out. He pours out the coins of the money changers and overturns their tables. “Take these things away from here and stop making the house of my father a house of merchandise!”
The Jews ask : “What sign you wanted to show us by doing this?” Jesus answers: “Break down this temple and in three days I will raise it up”. The Jews assume that Jesus is talking about the literal temple and so they ask: “This temple was built forty six years and you will raise it up in three days?”
The Jews and even his disciple do not know that Jesus is talking about the temple of his body. His disciples only realized his word after he was raised from his dead.
Reference word : John 2:12-22; /Matthew 13:55, Luke 4:23