Daniel 1:5-8

The king provided them a daily allowance of the best food and wine from the king’s table. For three years they were to receive a thorough education, after which they would enter the king’s service. Among these men of Judah were Daniel, Hananiah, Mishael, and Azariah. But the chief official of the palace gave them Babylonian names: Daniel he called Belteshazzar, Hananiah he called Shadrach, Mishael he called Meshach, and Azariah he called Abednego. However, Daniel determined in his heart not to contaminate himself with the food and wine from the royal table, so he begged the chief official to exempt him from the royal diet.