This episode contains a reading of Chapter 18 from the 1689 London Baptist Confession on "Of the Assurance of Grace and Salvation." The chapter expounds on the confession's teachings regarding the assurance believers can have of their salvation. It affirms that such assurance is not a bare conjectural probability, but an infallible certainty grounded upon the divine truth of the promises of salvation, the testimony of the Spirit witnessing with the spirits of believers, and the evidences of grace within their hearts and lives. The chapter covers how this assurance is desired, obtained, and maintained by believers, and addresses issues like its possibility of being weakened and revived. It encourages the use of means like the Word, desires after heaven, keeping a good conscience, and performing spiritual duties to preserve assurance.