What does Mark 11:15 mean?
The temple itself makes up a small part of the Temple Mount, sitting on the west side, slightly towards the north. From west to east is the Holy of Holies, the altar, and then the Women's Courtyard. A wall surrounds this area. Around the temple building is the Court of the Gentiles, specifically set aside so Gentiles can worship the Jewish God. Porticoes edge the mount, the largest on the south side, where religious teachers talk and debate (Luke 2:41–52). When the text says that something happens in "the temple," it's most likely including any of these areas on the Temple Mount.When Israel enacts a census, men aged twenty and older are required to bring half a shekel to God as an atonement for their lives (Exodus 30:11–16). As Jews live all over the Roman Empire, they don't always carry Jewish coins, so money-changers set up shop in the Court of the Gentiles to exchange money—for a small fee. Some sacrifices require a pair of turtledoves or pigeons (Leviticus 1:14; 5:7; 12:8; 14:22; Luke 2:22–24). A lamb (Leviticus 4:32), ram (Leviticus 5:18), or goat (Leviticus 3:12) might make the trip from a far-off city undamaged, but probably not birds, so enterprising locals also sell birds for sacrifice.
These stalls, prophesied in Zechariah 14:21, were Sanhedrin-sanctioned rivals to the larger markets on the Mount of Olives. Scholars posit that they were very recent, started by Caiaphas around AD 30. Scholars do not know what grudge Caiaphas had against the Mount of Olive merchants to warrant such a sacrilegious response. These businesses filled a need, but did so by turning the Temple Mount into a profit-motivated marketplace. Worst, these stalls and their traffic clogged up space specifically set aside for Gentile God-followers who have come to pray (Mark 11:17).
About two hundred years earlier, the Greek king Antiochus Epiphanes defiled the temple by using it to sacrifice pigs to Zeus. Judas Maccabeus led the Jews in a successful revolt and purified the temple. About a decade before Jesus was born, Herod the Great renovated the building, making it more extravagant than any but Solomon's original. The temple had become a symbol of Jewish nationalism, as well as a way for residents of Jerusalem to make money, as they supplied visiting Jews from throughout the Roman Empire with whatever they needed to make sacrifices.
This puts the hatred of local leaders for Jesus into clearer focus. When Jesus condemns temple-based capitalism, rebels against aristocracy that benefits from temple rituals (Mark 11:27–33), and prophesies the destruction of the temple itself (Mark 13:1–2), He shows Himself to be a threat not just to the corrupted Judaism of the Pharisees but to the entire way of life of Jerusalem and the temple.
The religious and civil leaders find this a compelling reason to have Jesus killed—even more so that His claims to be the Son of God