13:24-30
Jesus then tells them another parable, this time the parable of the weeds. Some might have wondered why God doesn’t just zap all the bad people. This parable explains why.They might have wondered where the bad folk had all come from. The Law was good, how come then that there is so much evil? Jesus explains that the enemy had sown the weeds. Having accepted this the natural reaction was to pull up all the weeds. Jesus’s answer to this suggestion is no, because they might also uproot the good stuff as well. God is concerned with saving as well as judging. But there would come a time of distinction, this would happen at harvest time, then the weeds would be collected and burned, the wheat would be gathered in.
13:31-35
Jesus tells yet another parable, or rather two parables, about the mustard seed and the yeast. The kingdom can seem to be small and inconsequential, but like the mustard seed it grows into the largest of garden plants, and the birds nest in it. Like yeast, it works its effects through everything. Matthew then quotes from Psalm 78:2, showing that in speaking in parables Jesus is fulfilling the Scriptures.
13:36-43
The disciples asked Jesus to explain the parable of the weeds. The key difference between the disciples and the religious leaders is that the disciples were willing to learn from Jesus. The same applies to us. We will not understand everything, but when we don’t we do not decide that God is wrong, but ask Him to instruct us. There will be a final reckoning.