4:25. Adam also knew his wife again: and she brought forth a son, and called his name Seth, saying: God hath given me another seed for Abel, whom Cain slew.
4:26. But to Seth also was born a son, whom he called Enos: this man began to call upon the name of the Lord.
Began to call upon, etc.... Not that Adam and Seth had not called upon God, before the birth of Enos; but that Enos used more solemnity in the worship and invocation of God.
Genesis Chapter 5
The genealogy, age, and death of the Patriarchs, from Adam to Noe. The translation of Henoch.
5:1. This is the book of the generation of Adam. In the day that God created man, he made him to the likeness of God.
5:2. He created them male and female; and blessed them: and called their name Adam, in the day when they were created.
5:3. And Adam lived a hundred and thirty years, and begot a son to his own image and likeness, and called his name Seth.
5:4. And the days of Adam, after he begot Seth, were eight hundred years: and he begot sons and daughters.
5:5. And all the time that Adam lived, came to nine hundred and thirty years, and he died.