1 Jean 4:15

15 Quiconque confessera que Jésus est le Fils de Dieu, Dieu demeure en lui, et lui en Dieu.

1 Jean 4:15 Meaning and Commentary

1 John 4:15

Whosoever shall confess that Jesus is the Son of God
The only begotten of the Father; that he is not a mere man, as the Jews, and Ebion and Cerinthus said, but a divine person, equal with the Father; which contains all that relates to the dignity of his person, and his fitness for his office as a Saviour, and which was the test of faith in those times, and the grand article of belief: not that a bare assent to this had what followed annexed to it; for the devils believed and owned that Jesus was the Son of God; and so might, and did, unregenerate persons, as the centurion at the cross of Christ, who know nothing what communion with God is; but this confession is such as is attended with a believing in Christ from the heart unto righteousness, life, and salvation, and a cheerful obedience to his ordinances and commands, from a principle of love to him, and faith in him, things not to be found in devils and carnal men; see ( Romans 10:9 Romans 10:10 ) .

God dwelleth in him, and he in God; (See Gill on 1 John 4:13); this should encourage to an open and hearty confession of Christ as the Son of God, and Saviour of sinners, and to a public profession of his name, and faith in him, and an holding it fast without wavering.

1 Jean 4:15 In-Context

13 En ceci nous connaissons que nous demeurons en lui et lui en nous, c'est qu'il nous a donné de son Esprit.
14 Et nous avons vu, et nous rendons témoignage que le Père a envoyé le Fils, le Sauveur du monde.
15 Quiconque confessera que Jésus est le Fils de Dieu, Dieu demeure en lui, et lui en Dieu.
16 Pour nous, nous avons connu et cru l'amour que Dieu a pour nous: Dieu est charité; et celui qui demeure dans la charité, demeure en Dieu et Dieu en lui.
17 En ceci la charité est accomplie en nous, afin que nous ayons confiance au jour du jugement, c'est que nous sommes dans ce monde tels qu'il est lui-même.
The Ostervald translation is in the public domain.