26 Seth also had a son, and he named him Enosh. At that time people began to call ona the name of the LORD.

Read Genesis 4:26 Using Other Translations

And to Seth, to him also there was born a son; and he called his name Enos: then began men to call upon the name of the LORD.
To Seth also a son was born, and he called his name Enosh. At that time people began to call upon the name of the LORD.
When Seth grew up, he had a son and named him Enosh. At that time people first began to worship the LORD by name.