1 John 4:8

8The [one]ὁnotμὴlovingἀγαπῶνnotοὐκhas knownἔγνωτὸνGodθεόν,becauseὅτιὁGodθεὸςloveἀγάπηisἐστίν.

The one not loving has not known God, because God is love.