Though such an explicit contradiction is no doubt…

““Though such an explicit contradiction is no doubt bewildering, Calvin’s final conclusion—namely, that the author of 1 John “does not speak of the essence [or the nature] of God” remains just what his overall theological perspective requires. So let us now consider the exegetical merits of this interpretation. Is there anything to be said on its behalf? Very little; indeed, there is much to be said against it. For as Packer himself pointed out, there are two other Johannine statements “of exactly similar grammatical form”: “God is light” and “God is spirit,” and the “assertion that God is love has to be interpreted in the light of what these other two statements teach.” 139 But these other two Johannine statements unquestionably are statements about the essence (or the nature) of God. In 1 John 1:5, we read that “God is light and in him is no darkness at all.” That is not a declaration to the effect that, by a happy accident, God happens to be free from all darkness, all impurity, all unrighteousness; nor is it a declaration that God has chosen to remain free from all darkness in his relationship to some fortunate people only. It is instead a declaration about the very essence (or nature) of God. And similarly for the assertion in John 4:24 that God is spirit. As Calvin acknowledged in a comment upon this very passage, “Christ himself calls God in his entirety ‘Spirit’”; and this implies “that the whole essence of God is spiritual, in which are comprehended Father, Son, and Spirit.” 140 But then, if God is spirit implies that “the whole essence of God is spiritual,” why should not God is love likewise imply that it is God’s very essence (or nature) to love?””

— Thomas Talbott