Tozer wrote a book called Knowledge of the Holy which addresses the attributes of God quite nicely.
Matter of fact, I’ve been posting threads from it recently.
If you’re interested in reading them, just do a keyword search for Tozer.
The first couple chapters start out slow, but wowee, does it get deep. The nice thing about that book is that the chapters are really relatively short so it’s easy to do in small bites.
There are many things that are attributed to God’s nature, but the very core, soul, being, essence of God is pure love.