Ambrose of Milan : However, a higher understanding leads us to think that the strength of the mind is in the soul, and the soul is in the body, just as the head of the household is in his own home. For what the mind is in the soul, that is the soul in the body. If the mind is safe, the house is safe, the soul is safe; if the soul is unharmed, the flesh is unharmed. For the sober mind controls all passions, governs the senses, and regulates speech. Therefore, the Lord rightly says: 'Enter within yourself,' that is, enter into your own mind, into the ruler of your soul; there is salvation, there is guidance; outside is the flood, outside is danger. But if you are virtuous within, you are also safe outside; for where the mind is its own master, there are good thoughts, good actions. For if no vice clouds the mind, there are sincere thoughts. — On Noah and the Ark, 11.38 Bede : Noah did therefore all that God commanded him, and the Lord said to him: Enter you and all your household into the ark, etc. Noah did all that God commanded, that is, he built the ark, and, with chambers arranged, he brought provisions into it for all living creatures. — Commentary on Genesis (Hexaemeron)