The sermon defends the authenticity of 1 John 5:7–8, arguing that despite claims by some scholars that these verses are absent from early Greek manuscripts, they are supported by early Christian writers like Cyprian and Origen, as well as Latin and Greek textual evidence from the 4th century onward. It emphasizes that removing these verses creates a grammatical and theological inconsistency, particularly in the relationship between the Spirit, water, and blood, which only makes sense when the Trinity is affirmed as the unity of Father, Word, and Spirit. The internal evidence—especially the shift from neuter to masculine grammar in verse 8—demonstrates that the passage is not a later addition but a deliberate, coherent testimony to the Trinity. The sermon concludes with a strong affirmation of the trustworthiness of Scripture, urging believers to reject misleading claims about textual corruption and to see the Bible as a reliable lamp and light for faith and life. Trinity Textual Criticism Biblical Inerrancy Pastoral Theology Spiritual Guidance