Hebräer 11:30

The soundings of trumpets, though one were to sound for ten thousand years, cannot throw down walls, but faith can do all things [CHRYSOSTOM]. seven days--whereas sieges often lasted for years.

The apostle having, in the close of the foregoing chapter, recommended the grace of faith and a life of faith as the best preservative against apostasy, he how enlarges upon the nature and fruits of this excellent grace. I. The nature of it, and the honour it reflects upon all who live in the exercise of it (Heb 11:1-3). II. The great examples we have in the Old Testament of those who lived by faith, and died and suffered extraordinary things by the strength of his grace (v. 4-38). And, III. The advantages that we have in the gospel for the exercise of this grace above what those had who lived in the times of the Old Testament (Heb 11:39, Heb 11:40).

11:30 The conquest of Jericho (Josh 5:13–6:27) offers another example of great faith, as the people acted in obedience to God’s unusual instructions.