The sermon centers on the parable of the wise and foolish virgins in Matthew 25, using the imagery of the bridegroom's delayed return to illustrate the critical importance of genuine spiritual readiness through the indwelling of the Holy Spirit. It emphasizes that true faith is not merely external conformity or religious activity, but an inward transformation marked by the Spirit's presence—without which one cannot belong to Christ. Drawing on Scripture from John, Romans, and 1 Corinthians, the message underscores that salvation is a two-way relationship initiated by God's grace, where the Spirit enables true knowledge of Christ, and counterfeit faith is exposed at the moment of His return. The sermon warns against spiritual complacency, likening the church's lukewarm state to the foolish virgins who, despite outward appearances, lacked the essential oil of the Spirit, and calls listeners to repent, awaken, and enter the narrow gate while the door remains open. Ultimately, it presents the urgent call to genuine faith, rooted in the Spirit's work, so that when Christ comes—like a thief in the night—believers may be found ready, not with empty lamps, but with hearts indwelt by the Holy Spirit, and thus welcomed into eternal life.