i feel people put too much importance on words. love, for example, might be translateable into many languages, but i would be surprised if originally, etymologically, it actually meant the same thing. even in the same language, the word love probably meant something wildly different just a few centuries ago
i'll point out that this is merelly my opinion, and i'd love to hear your arguments if you disagree, but ill argue that love isnt one overarching feeling or emotion or anything transcendent, but a colection of human experiences that have come to be bundled under the same vague and abstract word, and those human experiences are fundamentally different from those experienced by people across history, or were called by different names even as the word love was being used with a different meaning.
ultimatelly, "all-loving" is meaningless, much like the word perfection, omnipotence, freedom, etc, outside of very specific and narrowly defined contexts.
i feel the same way about god. back before science could explain so many things so well people resorted to misticism and imagination, and they antropomorphised natural phenomena into the early concepts of god, and as knowlege advanced god's influence and presence on the physical world receded and he became more abstract.
today the idea of god as a giant bearded man that can carry mountains on his back and construct a world on a mere week only stopping to rest on the seventh day doesnt impress us anymore, but were still trying to describe him using the same words. he's no longer expected to be human shaped, like we though for so many aeons, with arms and legs and eyes and beard, or maybe having bodyparts of mighty animals or made of fire or bronze or ice, yet we still expect somenthing out there to have created all whose origin we dont understand, and because thought and emotions are still abstract enough, we still try to atribute those human words to that creator, but we strugle to understand those words that we ourselves invented and defined, because, once more, these features of the creator no longer fit with how we know the world works.