How can we Know for sure we have eternal life?

This Sunday school teaching by Teacher Raul centers on the definitive assurance of eternal life found solely in faith in Jesus Christ, the Son of God, as revealed in 1 John 5:11–12. It emphasizes that true belief is not merely intellectual assent but a personal, transformative relationship marked by the indwelling Holy Spirit, obedience to Christ's commands, and a life aligned with His teachings. The passage affirms that the Father, the Word (Jesus), and the Holy Spirit bear unified witness in heaven, while the Spirit, water (symbolizing baptism and divine testimony), and blood (representing Christ's atoning death) confirm this truth on earth, forming a coherent and trustworthy testimony. Raul's teaching defends the authenticity of the King James Version's inclusion of the Trinitarian passage, arguing that the doctrine of the Trinity is firmly grounded in Scripture and that rejecting Christ necessarily means rejecting the Father, making the claim that Jews and Christians worship the same God a theological contradiction. Ultimately, the message is a call to self-examination: eternal life is not earned but received through faith in Christ, and the presence of the Spirit in one's life is the surest sign of having the Son and, therefore, eternal life.