Daniel 1:7-8

To them the chief of the eunuchs gave names: he gave Daniel the name Belteshazzar; to Hananiah, Shadrach; to Mishael, Meshach; and to Azariah, Abed-Nego. But Daniel purposed in his heart that he would not defile himself with the portion of the king’s delicacies, nor with the wine which he drank; therefore he requested of the chief of the eunuchs that he might not defile himself.