What the world needs is a new curriculum of Practical Philosophy, which is to be designed to replace all the religious holy books of various traditions.
It seems there are not too many branches of practical philosophy around. Stoicism, a fairly scientific framework practically for daily living that can be easily understood by laymen, could be also covered among other candidates.
https://en.wikipedia.org/wiki/Stoicism
It says (roughly): God is the Universe, and the Universe is God. Everything is part of God, and all things are inter-related in the Universe. There is natural law including physics for people to search, which is a cosmic law applicable among all things! LOL
Perhaps a compromise for a 'God' definition to be acceptable by all mainstream religions, hopefully! Moving to a more peaceful and harmony world!