This question has been asked most likely since human thought came to earth. There are deep answers and silly answers.
The Infinite God cannot fit into words, of course. Words only point to something that cannot be reduced to words. Say, for example, I write the word "tree" here. This word is not a tree. This word points us in the direction of tree. Then we must ask many questions such as: What kind of tree? How big is the tree? What colors are its foliage? Does it bear fruit? And yet none of these questions nor any of our answers is actually a tree. We can explore scientifically what a tree is - whirling atoms. We can explore it historically - is this an old tree? We can explore it poetically, artistically, musically, etc, but our answers are not the tree itself.
The same is true of God. None of our explorations and none of our answers are God itself.
Jesus told us God is Love, so God is a verb and not a thing. We are told in scriptures that God is Spirit and not material, but created the material so leaves clues in our visible world. We can consider what God is not to find more clues. To define God is to limit God, take away infiniteness.
It seems to me we often get sidetracked by our own word definitions so that we settle for pat answers rather than to engage in the thrilling quest to know God, experience God, live moments of breathless experience of the Divine Presence.
Let us come to peace with the fact that there cannot be a God who fits into human words, but we can be humans who live within God.
This day Beloved Divine Presence, I bring all that I am to You. I turn once again to journey the path that leads me on a spiritual quest to come to know You more fully. Awaken me. Show me. Lead me.