'Master's' in the Bible

And that slave who knew his master’s will and didn’t prepare himself or do it will be severely beaten.

But the one who did not know his master's will and did things worthy of punishment will receive a light beating. From everyone who has been given much, much will be required, and from the one who has been entrusted with much, even more will be asked.

Now Jesus was also saying to the disciples, “There was a certain rich man who had a manager [of his estate], and accusations [against this man] were brought to him, that this man was squandering his [master’s] possessions.

I know what I will do, so that when I am removed from the management, people [who are my master’s debtors] will welcome me into their homes.’

“So he summoned each one of his master’s debtors. ‘How much do you owe my master?’ he asked the first one.

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."