Bede, on Prov 25:3

“The heaven above, and the earth beneath, and the heart of kings is unsearchable.”

“Heaven above, and earth below, etc. Just as the height of heaven and the depth of the earth cannot be comprehended by men, so the knowledge of the prophets and apostles, who, by the Spirit revealing, knew the secrets of divinity, transcends the capacity of our frailty.”

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