Eternal life is the term frequently used by Jesus to describe the endless happiness enjoyed in heaven, and to some extent the fullness of life in this lifetime to those that embraced his lessons on living a good life.
The concept of eternal life exists in the Old Testament also. In Proverbs 12:28 (ESV):
|“|| In the path of righteousness is life,
and in its pathway there is no death.
- Matthew 25:46; Mark 9:44; Luke 18:30: John 3, 4, 5, 6, 10, and 12.