One Christmas, my grandmother gave me a beautiful pearl necklace. The lustrous globes glowed about my neck until one day the string broke. Balls bounced in all directions off our home’s hardwood flooring. Crawling over the planks, I recovered each tiny orb. On their own, they were small. But oh, when strung together, those pearls made such an impression!

Sometimes my yeses to God seem so insignificant—like those individual pearls. I compare myself to Mary, the mother of Jesus who was so fantastically obedient. She said yes when she embraced God’s call for her to carry the Messiah. “‘I am the…