'Master of the House' in the Bible

it is sufficient sure for the disciple that he be treated as his master, and the servant as his lord. If then they call the master of the house Beelzebub, how much more his domestics?

And after they had received it they murmured against the master of the house,

but this ye know, that if the master of the house had known at what hour the thief would come, he would have watched, and would not have suffered his house to be broke open: therefore be ye also ready;