Church Fathers on Luke 21:37

What our Lord commanded in word, He confirms by His example. For He who bid us watch and pray before the coming of the Judge, and the uncertain end of each of us, as the time of His Passion drew near, is Himself instant in teaching, watching, and prayer. As it is said, And in the day time he was teaching in the temple, whereby He conveys by His own example, that it is a thing worthy of God, to watch, or by word and deed to point out the way of truth to our neighbor.

But what were the things He taught, unless such as transcended the worship of the law?

Now the Evangelists are silent as to the greater part of Christ’s teaching; for whereas He preached for the space nearly of three years, all the teaching which they have written down would scarcely, one might say, suffice for the discourse of a single day. For out of a great many things extracting a few, they have given only a taste as it were of the sweetness of His teaching. But our Lord here instructs us, that we ought to address God at night and in silence, but in day…