Gregory the Great — as excerpted in the Catena Aurea on Luke 19:41-44

“(ut sup.) For our Redeemer does not cease to weep through His elect whenever he perceives any to have departed from a good life to follow evil ways. Who if they had known their own damnation, hanging over them, would together with the elect shed tears over themselves. But the corrupt soul here has its day, rejoicing in the passing time; to whom things present are its peace, seeing that it takes delight in that which is temporal. It shuns the foresight of the future which may disturb its present mirth; and hence it follows, But now are they hid from thine eyes.”