This sermon examines the calling of the prophet Samuel as recorded in 1 Samuel, highlighting his background as a child of promise dedicated to the Lord. The message emphasizes Samuel's immediate and humble obedience when God called him, contrasting his response with the spiritual decline of Eli, the high priest. It explores the theological significance of the rare word of the Lord in that era and the weight of Samuel's first prophecy, which declared judgment upon Eli's house. The preacher encourages the congregation to view all service, even mundane tasks like opening temple doors, as ministering directly to God. Ultimately, the sermon calls believers to adopt the posture of Samuel, saying, 'Speak, Lord, for your servant heareth,' and to remain faithful in delivering God's message regardless of personal cost or difficulty.