<p>12:21 <em>And upon a&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  set day</em>- Perhaps a Jewish feast day, or a day of religious significance, upon which Herod wished to present himself as a Divine figure.</p><p><i>Herod dressed himself in</i> <em>Royal apparel</em>- Literally, 'the clothing of the Kingdom'. He was wilfully playing God.</p><p><em>And sat on the throne and delivered an oration to them</em>- In imitation of the Lord sitting on His judgment throne <em>bema</em> specifically refers to a judgment throne, and giving his verdict as if it were the Lord's.</p>