In the seventh century, what is now called the United Kingdom was many kingdoms often at war. When one king, Oswald of Northumbria, became a Christian, he called for a missionary to bring the gospel to his region. A man named Corman was sent, but things didn’t go well. Finding the English “stubborn,” “barbarous,” and uninterested in his preaching, he frustratedly returned home.

“I am of the opinion,” a monk named Aidan told Corman, “that you were more severe to your unlearned hearers than you ought to have been.” Instead of giving the Northumbrians “the milk of more easy doctrine,” Corman had given them teaching they couldn’t yet grasp. Aidan went to Northumbria, adapted his preaching to the people’s understanding, and thousands became believers in Jesus.

Aidan got this sensitive approach to mission from Scripture. “I gave you milk, not solid food,” Paul told the Corinthians,“for you were not yet ready for it” (1 Corinthians 3:2). Before right living can be expected from people, Hebrews says, basic teaching about Jesus, repentance, and baptism must be grasped (Hebrews 5:13–6:2). While maturity should follow (5:14), let’s not miss the order. Milk comes before meat. People can’t obey teaching they don’t understand.

The faith of the Northumbrians ultimately spread to the rest of the country and beyond. Like Aidan, when sharing the gospel with others, we meet people where they are.