In John chapter two we see quite a contrast in behavior by Jesus. He does His first miracle in Cana of Galilee, which would be near his home. The He travels to Jerusalem and upon entering the Temple, a Holy Place of worship and sacrifice, He throws out the money changers. What we see in the character of Jesus is that there were times of caring compassion for the needs of others. Then, there was seemingly a jealously for the holiness of God's house.
“This beginning of signs Jesus did in Cana of Galilee, and manifested His glory; and His disciples believed in Him.” (John 2:11 NKJV)
This would be the beginning of many signs, miracles and wonders that were performed by Jesus. Each of these were a sign, not just that men would believe in His authenticity. But, they were a true manifestation of the glory or greatness that He was truly the son of God come down to bring salvation to mankind. This would be a point in time for His disciples to make a conscious decision about their faith in who Jesus was and what He had come to do.
“When He had made a whip of cords, He drove them all out of the temple, with the sheep and the oxen, and poured out the changers’ money and overturned the tables.” (John 2:15 NKJV)
For some this could be construed as a violent act on the part of Jesus. The Temple was the House of God, a holy place of worship, sacrifice and the very presence of God. Here is Jesus coming to worship and what He finds instead is merchandizing for human gain rather than for spiritual gain. Remember, what does it profit a man if he gains the whole world and loses his own soul! Like Jesus we need to have a zeal for God and the worship of the One who did so much and sacrificed so much for our cleansing and salvation.