Jeremiah 11:5

Then to what was said beforehand by the Lord the prophet answers—to the words "Cursed is the man who will not hear the words of this covenant"—and he says: "And I answered and said, So be it, Lord." What is "So be it, Lord"? Cursed is he who will not abide in the words of this covenant.

This was the reason why He sent not Jeremiah only into Egypt, but also Ezekiel into Babylon, and they did not refuse to go. For when they found their Master love the people exceedingly, they continued themselves to do so likewise. Much as if a right-minded servant were to take compassion upon an intractable son when he saw his father grieving and lamenting about him. And what was there that they did not suffer for them? They were sawn asunder, they were driven out, they were reproached, they were stoned, they underwent numberless grievances. And after all this they would run back to them.… And for the people of the Jews, Jeremiah has composed Lamentations in writing. And when the general of the Persians had given him liberty to dwell securely, and with perfect freedom, wherever he pleased, he preferred above dwelling at home the affliction of the people, and their hard durance in a strange land.

(Verse 5.) In order to fulfill the oath that I swore to your fathers, I will give them a land flowing with milk and honey, just as it is on this day. The fathers seem to receive, as the sons receive; and the promise to Abraham is fulfilled in his descendants. However, we must understand the land flowing with milk and honey metaphorically as representing the abundance of all things, as Virgil says in Eclogue III. Let honey flow for them, let the rough bramble bear cinnamon. And again: And everywhere he restrained the wines flowing in the rivers. Or certainly, tropologically, let us perceive the Church of Christ as the land flowing with milk and honey, in which we are nurtured as infants and sucklings through faith, so that we may be able to receive solid food. And I answered and said, Amen, Lord. For which reason the Seventy translated 'Fiat, Domine' as 'Amen' (for this is what 'amen' signifies). The Lord had said, 'I have sworn to give to your fathers a land flowing with milk and honey,' as is confirmed today by the very things themselves (Exod. III). The diligent prophet takes up the voice of the Lord for his people and desires to be true and to endure forever what has been given. Therefore he says, 'Truly, Lord, you have fulfilled what you promised; whether it be done, Lord, or whether it endure forever, this is what you have given.'