The sermon dives into the comparison between John 3:16 and Genesis 15:6, emphasizing the theological depth of the latter in the Old Testament. It begins with the reassurance given to Abram by God, highlighting Abram's honest conversation with God about his doubts and struggles. The pivotal moment comes when Abram believes God's promises, and his faith is counted as righteousness. This faith, devoid of reliance on personal deeds, is akin to the righteousness credited to Christians through Christ. The sermon then transitions to God's covenant with Abram, symbolized by a unique ritual involving animal sacrifice. God, represented by a blazing torch, passes through the animal halves alone, demonstrating his commitment to fulfilling the covenant regardless of human failure. The sermon culminates in the gospel message, linking Jesus's sacrifice to God's covenant with Abram, emphasizing the substitutionary atonement and the resurrection. It concludes by celebrating the unique grace of the gospel, where God takes upon himself what humanity deserves and offers what they don't, thus affirming God's faithfulness to his promises through Christ.