My mile-long walk home from dropping off my daughter at her school gives me the opportunity to memorize some verses from the Bible—if I’m intentional about doing so. When I take those minutes to turn over God’s Word in my mind, I often find them coming back to me later in the day, bringing me comfort and wisdom.

When Moses prepared the Israelites to enter the Promised Land, he urged them to hold close to God’s commands and decrees (Deuteronomy 6:1–2). Wanting them to flourish, he said they should turn these instructions over in their minds and discuss them with their…