https://www.mljtrust.org/sermons-online/ephesians-3-7-8/the-minister-task-and-calling/

In this sermon on Ephesians 3:7–8 titled “The Minister – Task and Calling,” Dr. Martyn Lloyd-Jones lays out the calling and job of the minister as addressed here by Paul. The minister is called and appointed by God alone. He is called to preach the unsearchable treasures of Christ, that is Christ himself. Dr. Lloyd-Jones goes on to show that the treasures of Christ are for all believers. In Christ all that is needed is found, including wisdom, knowledge, and understanding. When one has understanding and realizes their sin, how can they possibly approach the holy God they know they need? He can be approached only in Christ who clothes Christians with His righteousness. Christians can continue their lives with God when they face sin and evil only through sanctification in Christ. Christ sanctifies through the power of the Holy Spirit. Dr. Lloyd-Jones ends with an encouragement – knowing the unsearchable treasures of Christ, that is, knowing Christ, is the greatest treasure. It is a great privilege and responsibility to take that treasure and show it to the unbelieving world.