Search me, O God, and know my heart: try me, and know my thoughts: And see if there be any wicked way in me, and lead me in the way everlasting. (Psalm 139:23-24) **Sermon Summary:** This sermon, centred on Psalm 139:23–24, unfolds a profound meditation on God's omniscience, omnipresence, and sovereignty, revealing both the terror of divine knowledge for the unrepentant and the deep comfort it offers to the believer. The preacher emphasizes that God's all-knowing nature—knowing every thought, word, and hidden motive—should lead not to despair but to humble self-examination and reliance on Christ, who perfectly fulfilled God's righteousness. Drawing from David's prayer to be searched and known, the sermon calls believers to a holy self-awareness, recognizing their inherent sinfulness and the impossibility of self-justification, while pointing to Christ as the only true substitute whose sinless life and atoning death make eternal life possible. The message is both convicting and comforting: while God sees all, He also draws sinners to Himself through grace, and those who are in Christ are securely kept by His power. Ultimately, the sermon calls for a life marked by genuine repentance, hatred of sin, and a continual turning to Christ as the only way everlasting, grounded in the assurance that God is too good to be unkind and too wise to be mistaken.