What does Luke 19:47 mean?
Luke continues to show Jesus living out a visceral representation of His prophecy in Luke 19:41–44. In the moment, Luke is summarizing Jesus' activities in the week before His crucifixion. This mostly consists of teaching in the temple while the leaders of Jerusalem stand in powerless fear of the people who love Jesus. But just as Jesus' clearing of the merchants in the Court of the Gentiles foreshadows the Roman army looting the temple of gold and silver, the Jewish leaders foreshadow their next generation's actions.Two characteristics of the Jewish religious and civil leaders contributed to the AD 70 destruction of Jerusalem and the temple: corruption and a blatant disregard for the welfare of the people. The leaders of Jesus' day allowed merchants to cheat the travelers who needed materials for sacrifices. These pilgrims also needed top exchange coins for Jewish shekels for the temple tax—in part because the high priest received kickbacks. In AD 66, the Jewish people understood the ruling class of Sadducees were in league with the Romans who taxed the people into poverty.
As the Roman army approached Jerusalem, the leadership disregarded the safety of the people and spent several years fighting amongst themselves, wasting time they could have used to prepare for war. In the time depicted by Luke, the priests, experts in the law, and civil elders nurse their own jealousy of Jesus and plot to destroy Him. That is their choice, rather than acknowledging that He is the prophesied Messiah and leading their people to their intended salvation.
In a week's time, the Sanhedrin will think that they've won. Even when rumors spread that Jesus has risen from the dead, even when the disciples refuse to stop preaching Jesus' resurrection, they will still rule Jerusalem and the Jewish people. They don't know that by rejecting Jesus, they have refused God's plan for them to bless the Gentiles (Genesis 12:2–3), pulled their people away from their own Messiah and King, and set the stage for the destruction of their city and temple.