The Story of Two Lineages
Pastor Tan Thai · Jul 30, 2017
This sermon analyzes the fundamental contrast between the lineage of Cain and the lineage of Seth in Genesis 4–5, revealing two completely opposing life priorities: placing material things first versus placing God at the center. The pastor calls the congregation to live like the line of Seth — calling on the name of the Lord, walking with Him, and remaining faithful to the end.
The sermon opens by reviewing the previous message on Cain and Abel, particularly Satan's strategy of using jealousy to destroy spiritual life. The pastor then introduces the main theme: Satan's second strategy is to lead people — like Cain and his descendants — to place material wealth, security, culture, and the arts as top priorities, effectively excluding God from their lives entirely. The image of a river polluted at its source illustrates how the enemy attacks through ancestors to affect generations.
The first section analyzes the lineage of Cain through Genesis 4:17–24. Cain built a city not in obedience to God but to protect himself from the punishment of wandering. His descendants developed economies, music, and weapons — things not inherently sinful — but entirely without reference to God. Lamech, the seventh generation from Cain, represents the peak of spiritual deterioration: taking two wives, committing murder, and proudly singing about revenge seventy-seven times — directly contrasting Jesus' teaching on forgiving seventy times seven (Matthew 18:21-22). The pastor draws parallels to modern society, where pride in science, medicine, and economy has replaced God in human hearts.
The second section presents the lineage of Seth through Genesis 4:25–26 and chapter 5. Eve acknowledged Seth as a gift from God, expressing gratitude despite deep suffering. From the time of Enosh, Seth's line began to call on the name of the Lord — the first recorded instance of humans calling on God in Scripture. The seventh generation of Seth's line was Enoch — the opposite of Lamech from Cain's line — described as one who walked with God for 300 years and was taken by God before death (Genesis 5:22-24; Hebrews 11:5-7). Noah, son of Lamech in Seth's line, is also confirmed as a righteous man who walked with God.
The third section expands the theological picture to the theme of two cities — the city of Cain and the city of God. The pastor uses current urbanization trends to raise practical questions: how will the congregation's children live out their faith in large, competitive, temptation-filled cities? Daniel's example is cited: neither isolation nor assimilation, but living as salt and light. Jeremiah 29:4-7 reminds God's people to seek the peace of the city where they live and pray for it.
The sermon concludes with the hope of the heavenly city — the New Jerusalem — built by the hands of God Himself, reserved for those who call upon His name (Revelation 21:1-5; Hebrews 11:8-10; 12:22-24). The congregation is called to choose to become descendants of Seth's line — not to live famous like Enoch of Cain's line, but to walk with God like Enoch of Seth's line, even though that path is narrow and demands long-term faithfulness.