I the LORD do keep it; I will water it every moment: lest any hurt it, I will keep it night and day.
All Commentaries on Isaiah 27:3 Go To Isaiah 27
Ambrose of Milan
AD 397
You have in Isaiah the speech made by the soul of a just man or of the church: “I am a strong city, I am a city besieged,” defended by Christ and besieged by the devil. But one whom Christ aids ought not to be fearful of a siege. [Such a person] is defended by spiritual grace and is besieged by the perils of this world. Hence also it is said in the Song of Songs, “I am a wall, and my breasts are as a tower.” The wall is the church, and the towers are her priests, who have full power to teach the natural and the moral sciences.