18 In the morning, as Jesus was returning to Jerusalem, he was hungry, 19 and he noticed a fig tree beside the road. He went over to see if there were any figs, but there were only leaves. Then he said to it, "May you never bear fruit again!" And immediately the fig tree withered up. 20 The disciples were amazed when they saw this and asked, "How did the fig tree wither so quickly?" 21 Then Jesus told them, "I tell you the truth, if you have faith and don't doubt, you can do things like this and much more. You can even say to this mountain, 'May you be lifted up and thrown into the sea,' and it will happen. 22 You can pray for anything, and if you have faith, you will receive it."
Matthew Henry's Commentary on Matthew 21:18-22
Commentary on Matthew 21:18-22
(Read Matthew 21:18-22)
This cursing of the barren fig-tree represents the state of hypocrites in general, and so teaches us that Christ looks for the power of religion in those who profess it, and the savour of it from those that have the show of it. His just expectations from flourishing professors are often disappointed; he comes to many, seeking fruit, and finds leaves only. A false profession commonly withers in this world, and it is the effect of Christ's curse. The fig-tree that had no fruit, soon lost its leaves. This represents the state of the nation and people of the Jews in particular. Our Lord Jesus found among them nothing but leaves. And after they rejected Christ, blindness and hardness grew upon them, till they were undone, and their place and nation rooted up. The Lord was righteous in it. Let us greatly fear the doom denounced on the barren fig-tree.