As I was searching Bible Gateway, keyword "drunk," limited to the Epistles, the first result was Romans 13:13.
Let us behave decently, as in the daytime,
not in orgies and drunkenness,
not in sexual immorality and debauchery,
not in dissension and jealousy.
It caught David's eye, as only some things can; he thought it would be a good motto for the Estate.
I'm not sure, I think such a motto would invite unsubstantiated assumptions by outsiders. Not to mention it would imply a misleading distinction between daytime and nighttime activities at the House ... as if there's a difference.