God is a title, there are many that are called God, Odin, Buddha, Allah, Thor, Baal. Some people believe they are part of the universal god consciousness. But, there is only one true GOD, Jehovah! Unlike the non gods that humans worship in vane Jehovah is alive and completely in control and involved with His creation. Jehovah has many names because He is such a large and all encompassing GOD. His names describe Who He is and What He does.
Elohim - The Sovereign Mighty Creator
El Elyon - GOD Most High
El Shaddai - The All Sufficient One
Adonai - LORD & Master
Jehovah - The Unchangeable Intimate GOD
Jehovah Rophe - The LORD My Health
Jehovah Jireh - The LORD My Provider
Jehovah Rohi - The LORD My Shephard
Jehovah Shammah - GOD is There
Jehovah Makkeh - The LORD Who Molds Me
Jehovah Gmolah - The LORD Who Rewards
Jehovah Nissi - The LORD My Banner of Victory
Jehovah Shalom - The LORD My Peace and Wholeness
Jehovah M'Kaddesh - The LORD My Sanctifier
Jehovah Tsidkenu - The LORD My Righteousness
JESUS - He will Save His People from their sins
Immanuel - GOD With Us
Christ The LORD - Savior
Holy Spirit - Comforter, Councilor, Helper, Teacher

So if you want to know GOD, the only True and Living Triune GOD (Heavenly Father, Only Begotten Son, Holy Spirit), learn His names and call upon Him by Name.