As for natural disasters or “acts of God”, Jesus tells us in Luke 13 that the 18 men who were crushed when a tower fell in Siloam were not more guilty than anyone else; such acts aren’t punisment IOW. So they can certainly seem to be haphazard or random and perhaps they are. Scripture also tells us that the rain falls and the sun rises on the good and bad alike.
Just a couple of my thoughts here.In my reading about the felled tower of Siloam in the gospels, Jesus does not necessarily imply that this “act of God” was not a punishment. For Jesus says “do you think they were more guilty,” which appears to me to imply that they were guilty and unless we repent we will all perish as they did.
The verses before the tower of Siloam it is said in the gospel:
"At that time some people who were present there told him about the Galileans whose blood Pilate* had mingled with the blood of their sacrifices.
He said to them in reply, “Do you think that because these Galileans suffered in this way they were greater sinners than all other Galileans?
By no means! But I tell you, if you do not repent, you will all perish as they did! (Luke 13: 1-3). Here Jesus says “greater sinners” concerning the Galileans who suffered in this way which appears to me again to indicate a link between sinning and suffering in that way. At the very least, I don’t think we can say in the very words Jesus uses that there is no link “For the wages of sin is death” (Romans 6:23).
And then following the verses about the Galileans whose blood Pilate had mingled with the blood of their sacrifices and the felling of the tower of Siloam, Jesus follows this with the parable about the barren fig tree in Luke which runs thus:
And he told them this parable: “There once was a person who had a fig tree planted in his orchard, and when he came in search of fruit on it but found none,
he said to the gardener, ‘For three years now I have come in search of fruit on this fig tree but have found none. [So] cut it down. Why should it exhaust the soil?’
He said to him in reply, ‘Sir, leave it for this year also, and I shall cultivate the ground around it and fertilize it;
it may bear fruit in the future. If not you can cut it down.’” (Luke 13: 6-9).
If we tie this parable to the preceding verses about the Galileans and the felled tower of Siloam, it seems to me that Jesus appears to be saying that the Galileans and those 18 who died from the felled tower of Siloam were “cut” down from want of bearing fruit.
It appears to me that Jesus is just reiterating the teaching of the Old Testament where the inspired authors see God’s hand in everything.
Now, I’m not suggesting that all the people who may die in some natural calamity or disaster are mowed down because they are unrepentent sinners or for lack of bearing fruit. It may happen that some may die that are actually good, God fearing people and God only knows why he took them at this time. But, no event in the world happens haphazardly or randomly but all takes place according to the wise providence of God.