'Master's' in the Bible

And that servant who has been told his Master's will and yet made no preparation and did not obey His will, will receive many lashes.

"So he called all his master's debtors, one by one, and asked the first, 'How much are you in debt to my master?'

The Master turned and looked on Peter; and Peter recollected the Master's words, how He had said to him, "This very day, before the cock crows, you will disown me three times."