How can we define God? There are no words that can define Him completely, since He is such an immense and indescribable being for our finite minds.
We must be clear about this, God is too big, we are like ants before Him. There is nothing that can be likened to or compared to God, even the most powerful angel is worthy of being compared to the might of our sublime God. He simply has no rivals, there is no one who can lead Him, and there is nothing so beautiful that can resemble Him.
See what the prophet Isaiah says about the immensity of our Lord: