The sermon argues for the biblically proper observance of Christian sacraments, specifically baptism and the Lord's Supper, by prioritizing Scripture over church tradition. It emphasizes that baptism serves as the initial marker of faith and must follow the New Testament pattern of immersion in water, as demonstrated by Jesus and practiced in the book of Acts. The speaker critiques infant baptism and sprinkling, asserting that these practices do not align with the command to make disciples who hear, believe, and repent. By examining passages such as Matthew 28 and Acts 2, the message establishes that valid baptism requires conscious faith and full immersion, distinguishing it from Old Testament signs like circumcision. Ultimately, the sermon calls believers to return to the authority of the Bible for defining how these ordinances should be conducted within the church.