Against the backdrop of a dusty, dry desert, a grass-covered pasture graces the outskirts of Bethlehem. It’s known as Shepherd’s Field. Shepherds bring their flocks there to graze and lie down on the lush, tender grass — many shepherds and many flocks at the same time. It’s not hard for an observer to realize the strong heart connection each shepherd has with his sheep amid the noise.

As the sun begins to inch toward the horizon at the closing of the day, each shepherd calls to his sheep. To the observer, there is a cacophony of voices traveling across the hillside. But to the sheep, they hear one voice …