By Peter J. Leithart, First Things - Advent, which will begin in a little over a week, celebrates the coming of the Good Shepherd who lays down his life for his sheep. The good news of his arrival is first announced to actual shepherds in the fields around Bethlehem. That’s a clue to the scope and aims of Jesus’s mission, a sign the coming of the Good Shepherd will produce a host of good shepherds... Bethlehem’s worshipful shepherds symbolize Israel. From the beginning, Israel was a nation of shepherds. Abraham, Isaac, and Jacob cared for flocks of sheep and goats.