The Seal of the Heart

This sermon is part of a series titled "Abide in Me" based on John 15:4, designed to help the congregation understand what it means to abide in Christ and how to know whether one truly does so. The pastor frames the central question: how can we know that someone has a new Lord in their life, or put differently, how can we recognize a person who has genuinely received Jesus Christ?

The first section presents the biblical promise of the Holy Spirit from both the Old and New Testaments. From Ezekiel 36:26-27 on a new heart and a new spirit, to Jesus' promise in John 14:16-17 regarding the Comforter, and Paul's words in Ephesians 1:13 about the seal of the Holy Spirit — all affirm that the giving of the Holy Spirit is an essential part of God's plan of salvation. The pastor also briefly explains the Trinity to help the congregation understand the relationship between the Father, the Son, and the Holy Spirit.

The second section focuses on the seal of the Holy Spirit in the life of the believer, drawing on Romans 8:9, 14, 16 and 2 Corinthians 1:21-22. The pastor emphasizes that this seal is not an outward sign like a wedding ring or a school emblem, but an inward gift placed within the heart. Performing many activities in the church does not automatically mean a person has the true seal of the Holy Spirit; however, a person who genuinely has the Spirit's seal will certainly do God's work.

The third section addresses how the Holy Spirit manifests in daily life through the image of knowing a tree by its fruit from Matthew 7:16-23. The pastor explains that fruit is the result of a long process, not something produced overnight, and that the Holy Spirit nurtures and prunes believers so they may bear fruit. The sermon concludes with a call for self-examination: does one's life display love, kindness, forgiveness, faithfulness, and honest speech as taught in Colossians 3:12-16?