It's not abstract at all, but my favorite is the Living God. It's an old one (Elohim khayyim), but I strongly empathize with the sentiment: if there is a God, God must be alive. She must be able to do things–God must have volition. He isn't just a product of natural order (e.g., the Sun). He might be a prick sometimes, but His actions are better than chance. If your god is a coin toss, your god may as well be a coin toss. Whichever God demonstrates Her existence is the real One. Everything else is make-believe at best, a long con at worst.