and along the way he saw a fig tree. But when he came to it, he found only leaves and no figs. So he told the tree, “You will never again grow any fruit!” At once the fig tree dried up.
It also means that the people of Israel were not acceptable to God. And why not? It was because they were trying to be acceptable by obeying the Law instead of by having faith in God. The people of Israel fell over the stone that makes people stumble,