1 John 4:2

2Byἐνthisτούτῳyou knowγινώσκετεtheτὸSpiritπνεῦματοῦof Godθεοῦ·EveryπᾶνspiritπνεῦμαthatὃconfessesὁμολογεῖJesusἸησοῦνChristΧριστὸνinἐν[the] fleshσαρκὶhaving comeἐληλυθόταofἐκτοῦGodθεοῦisἐστιν,

In this you⁺ know the Spirit of God: Every spirit that confesses Jesus Christ having come in the flesh is of God,