Ambrose of Milan, on Exod 20:12

“Honour thy father and thy mother, that thou mayest be longlived upon the land which the Lord thy God will give thee.”

“The formation of the children is then the prerogative of the parents. Therefore honor your father, that he may bless you. Let the godly man honor his father out of gratitude and the ingrate do so on account of fear. Even if the father is poor and does not have plenty of resources to leave to his sons, still he has the heritage of his final blessing with which he may bestow the wealth of sanctification on his descendants. And it is a far greater thing to be blessed than it is to be rich.”

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