A friend’s baby was suffering seizures, so they sped to the hospital in an ambulance, her heart racing as she prayed for her daughter. Her fierce love for this child hit her afresh as she held her tiny fingers, recalling too how much more the Lord loves us and how we are “the apple of His eye.”

The prophet Zechariah employs this phrase in his word to God’s people who had returned to Jerusalem after their captivity in Babylon. He calls them to repent, to rebuild the temple, and to renew their hearts of love for the true God. For the…