Biblical Account:
The birth of Seth is recorded in the Book of Genesis, specifically in Genesis 4:25-26. After the tragic events surrounding Cain and Abel, Adam and Eve were blessed with another son. The Berean Standard Bible states: "And Adam had relations with his wife again, and she gave birth to a son and named him Seth, saying, 'God has granted me another seed in place of Abel, since Cain killed him.' To Seth also a son was born, and he named him Enosh. At that time men began to call upon the name of the LORD."

Significance in Scripture:
Seth's birth holds significant theological importance as it represents the continuation of the godly lineage through which the promise of redemption would be fulfilled. Unlike Cain, who was marked by sin and violence, Seth is seen as a new beginning for humanity, a righteous line through which God's purposes would be realized. The naming of Seth, meaning "appointed" or "granted," reflects Eve's recognition of God's providence and faithfulness in providing another seed.

Genealogical Importance:
Seth is a pivotal figure in the genealogical records of the Bible. He is listed as the third son of Adam and Eve and is the ancestor of Noah, as detailed in Genesis 5. This lineage is crucial as it leads to Abraham, and ultimately to Jesus Christ, fulfilling the messianic prophecies. The genealogy in Luke 3:38 traces Jesus' lineage back to Seth, underscoring his role in the divine plan of salvation.

Theological Themes:
1. Divine Providence: The birth of Seth underscores the theme of God's sovereignty and providence. Despite the fall and the ensuing chaos, God provides a way for His redemptive plan to continue through Seth.

2. Hope and Restoration: Seth's birth brings hope and a sense of restoration to Adam and Eve after the loss of Abel. It signifies God's mercy and the possibility of renewal even after sin and tragedy.

3. Worship and Relationship with God: The mention that "men began to call upon the name of the LORD" during Seth's time indicates a revival or establishment of worship and a relationship with God. This marks a significant development in the spiritual life of early humanity.

Cultural and Historical Context:
In the ancient Near Eastern context, genealogies were not merely records of ancestry but were also theological statements about identity and destiny. Seth's inclusion in the biblical genealogy highlights the importance of maintaining a lineage that is faithful to God amidst a world marred by sin.

Legacy:
Seth's legacy is one of faithfulness and continuity of God's promise. His descendants, particularly through the line of Noah, are seen as the carriers of the covenantal promise that would eventually culminate in the coming of the Messiah. Seth's role in the biblical narrative serves as a reminder of God's unwavering commitment to His creation and His plan for redemption.