Ambrose of Milan, on Heb 12:22

“But you are come to mount Sion, and to the city of the living God, the heavenly Jerusalem, and to the company of many thousands of angels,”

“But because we must always be anxious, always attentive; and because the Word of God leaps forth like a young goat, or like a fawn, the soul must always be vigilant and strive for what it seeks and desires to hold. Therefore, as if having slipped, the soul says, "In my bed, I sought the one whom my soul loves during the nights." Whoever seeks well, let them seek in their bed, let them seek during the nights, neither on holidays nor on nights of rest. Let no time be vacant from the duty of piety; and if it does not find it at first, let it continue in seeking. Therefore, it says: "I will rise, therefore, and seek in the city, in the forum, in the streets." And perhaps it has not yet found it, because it sought in the forum, where there are legal disputes; in the streets, where there are markets for the sale of goods. For Christ is not purchased with any money. We can understand it in this way. In the bed, she seeks Christ, and she seeks him with tranquility, with peace. In the nights, she seeks, for he spoke in parables. For he has set darkness as his hiding place; and night reveals knowledge to night. Then, what we say in our hearts, we should be mindful of in our beds. But even so, she does not find, and therefore she says: "I will rise up, that is, I will raise up, and I will lift up my intention, so that I may seek diligently, I may seek earnestly: I will enter the city." And it is the soul that says: "I am a fortified city, I am a besieged city." It is a city fortified by Christ, it is the city of Jerusalem in heaven where the interpreters of divine law abound, and the learned in discipline: through them the Word of God is sought.”

Imported from an open dataset — not yet checked against the printed edition.