A time to get, and a time to lose; a time to keep, and a time to cast away;
All Commentaries on Ecclesiastes 3:6 Go To Ecclesiastes 3
Gregory of Elvira
AD 392
Jerusalem, therefore, was abandoned “like a booth in a vineyard” because the guardian angels left it along with the Lord when Christ had suffered. A crop in the field is guarded by the Lord not for its own sake but only for the grain it yields, such that the stalk is permitted to be destroyed once its fruit is harvested. So also it was not principally for its own sake that Jerusalem was guarded temporarily, but on account of Jesus Christ our Lord, who was born according to the flesh within its borders. But when its fruit had been harvested, that is, the body of Christ, whence came the heavenly bread of life, then Jerusalem was abandoned like a field after the harvest, like a booth in a vineyard after its grapes had been gathered. This, then, is why it was said here in the divine Scriptures, “There is a time for guarding and a time for casting aside,” for there was a time when Jerusalem was guarded and a time when it was being cast aside. Exposition of Ecclesiastes, Fragment