Names of God

By some counts, the Bible offers over 20 distinctly different names for God, but why does it do this?

According to some sources, God’s multiple titles and names included in the Bible are based off of the tradition of ancient rulers to give themselves many grandiose labels. The only problem with this is since when has God ever had any need to compete or adhere to human traditions?

If he isn’t playing along with some human tradition, then, why are these titles given to us?