Church Fathers on Luke 13:6

The Jews were boasting, that while the eighteen had perished, they all remained unhurt. He therefore sets before them the parable of the fig tree, for it follows, He spoke also this parable; A certain man had a fig tree planted in his vineyard.

There was a vineyard of the Lord of hosts, which He gave for a spoil to the Gentiles. And the comparison of the fig tree to the synagogue is well chosen, because as that tree abounds with wide and spreading foliage, and deceives the hopes of its possessor with the vain expectation of promised fruit, so also in the synagogue, while its teachers are unfruitful in good works, yet magnify themselves with words as with abundant leaves, the empty shadow of the law stretches far and…

The Lord Himself who established the synagogue by Moses, came born in the flesh, and frequently teaching in the synagogue, sought for the fruits of faith, but in the hearts of the Pharisees found none; therefore it follows, And came seeking fruit on it, and found none.