Chapter 5 begins with the generations of Adam, and it reminds the reader that as humans we are created in the image of God, both male and female, but then there is a reminder that Seth, and all humans, are also made in the image of Adam, and in his own likeness as well. In other words as in Adam we all have sinned. In Seth's lineage, there was a man named Enoch who walked with God, and then he was not because God took him (5:24), but everyone else in that line died. Also from Seth's line came Noah who also was described as one who walked with God (6:9). Noah built the ark and obeyed as God commanded, and he and his family and animals both male and female, were saved from the flood. God made a covenant with Noah that He would never flood the earth again, and He would place the rainbow in the cloud as a reminder of that covenant. Noah had three sons, Shem, Ham, and Japheth. It is here that we see nations forming. Through the line of Japheth came the Gentile nations such as the Medes and Greeks. From Ham came the Ninevites, Jebusites, Amorites, Girgasites, Canaanites, and cities such as Babel, Sodom and Gomorrah. From Shem's line came Abram, who would become Abraham, the Patriarch of the Jewish nation.