Read Psalms 48:1&2  When David became the king, he chose Jerusalem as his capital.  The capital is the place where the government of the country is.  In the very center of Jerusalem is a small hill known as Mt. Zion.  Mt. Zion is where David's son, Solomon built the first Temple.  It was destroyed and rebuilt 2 times.  Herod's Temple was built of pure white marble stone and was the Temple that was in Jerusalem when Jesus lived here on earth.  Herod's Temple was destroyed just a few years after Jesus' death.  Later, an Arab mosque, one of their churches, was built on Mt. Zion where the Temple used to be.  One of the Temple walls is still there in Jerusalem, and the Jews still go there to pray.  Jesus will come back to earth one day and set foot on Mt. Zion!  Our verses say that God is great and that He should be praised!  God is great and the city of His Temple is a great city too!