Luke 9:54

‘And when his disciples James and John saw this, they said, “Lord, is it your will that we bid fire to come down from heaven, and consume them?”

At this rejection of Jesus and His message James and John were furious. They probably considered that the Samaritans should have been feeling greatly honoured (they had never suggested similar treatment for Jews who refused to receive His words). So, with Elijah's exploits on those who had come from Samaria in mind (2 Kings 1:9; 2 Kings 1:12), and with their new perception of Jesus' glory gained at the Transfiguration, they asked Jesus whether He wanted them to call down fire on the village. That would show everybody what happened to people who treated Jesus like this! Note their confidence in what they were able to do with Jesus present. Note also that they had not yet caught on to what Jesus had been teaching them. Here their desire to be ‘the Greatest' was still coming out. And they were trying to involve Jesus in it too. Had they had their way Jesus would never have got to the cross, and mankind would never have been offered salvation.