1 John 2:24-26

Amplified Bible

²⁴ As for you, let that remain in you [keeping in your hearts that message of salvation] which you heard from the beginning. If what you heard from the beginning remains in you, you too will remain in the Son and in the Father [forever].

The Promise Is Eternal Life

²⁵ This is the promise which He Himself promised us—eternal life.

²⁶ These things I have written to you with reference to those who are trying to deceive you [seducing you and leading you away from the truth and sound doctrine].