1 John 2:22-24

Amplified Bible

²² Who is the liar but the one who denies that Jesus is the Christ (the Messiah, the Anointed)? This is the antichrist [the enemy and antagonist of Christ], the one who denies and consistently refuses to acknowledge the Father and the Son. ²³ Whoever denies and repudiates the Son does not have the Father; the one who confesses and acknowledges the Son has the Father also. 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].