John Nelson Darby writes to Mr. Maylan, encouraging him to consider dedicating himself to the work of the Lord amidst the pressing need for laborers in France. He emphasizes the importance of faith in this calling, noting that while trials may accompany devotion, the joy and fulfillment found in serving God far outweigh the challenges. Darby shares his own experiences of God's faithfulness and encourages Maylan to trust in the Lord's provision without relying on human support. He expresses a heartfelt desire for God to raise up many workers for His harvest and to strengthen the faith of all His servants.