Jamieson, Fausset and Brown on Daniel 3:8

8. accused the Jews--literally, "ate the rent limbs," or flesh of the Jews (compare Job 31:31; Psa 14:4; 27:2; Jr 10:25). Not probably in general, but as Da 3:12 states, Shadrach, Meshach, and Abed-nego. Why Daniel was not summoned does not appear. Probably he was in some distant part of the empire on state business, and the general summons (Da 3:2) had not time to reach him before the dedication. Also, the Jews' enemies found it more politic to begin by attacking Shadrach, Meshach, and Abed-nego, who were nearer at hand, and had less influence, before they proceeded to attack Daniel.