Jerome : Verse 19. "And Daniel blessed the God of heaven, and spoke, saying..." In contrast to those who occupy themselves with this world and delude the earthly minded with demonic arts and illusions, Daniel blessed the God of heaven. For the gods who did not create heaven and earth will pass away. — St. Jerome, Commentary on Daniel, CHAPTER TWO Philoxenus of Mabbug : Daniel told his companions to entreat the God of heaven to reveal this mystery unto them in order that he and his brethren might not perish, together with all the other wise men of Babylon; and then unto Daniel, in a vision of the night, was the mystery revealed. This then is the gift which abstinence gave unto the Children, and this is the harvest which they gathered in from the fields which had been sown with pulse and which had drunk in water. Run thy course then, O disciple, as did they, that like them thou mayest be able to restrain thyself and to go forth into a wide place; make thyself little that thou mayest be able to go through the narrow gate; drink water that thou mayest drink knowledge; feed upon pulse that thou mayest become wise in mysteries; eat by measure that thou mayest overcome without measure; fast that thou mayest see; this is the meat which belongeth to thee, because it is also thy discipleship, for according to this hast thou promised. — 13 Ascetic Discourses, Discourse 11 -- On Abstinence