It depends upon his understanding of the God. Those who say it for vested interest are Quacks or Dhongi and those who have understood the God see it everywhere and so don't have to say it; they may feel Ahm Brahmashmi (I am the Brahma the creator of the universe) the same way as a drop of ocean can also feel and say I am the ocean.
Someone who thinks they are god is ignorant. Someone who knows they are god is enlightened.
Opinion:
It is called delusion; self-deification; extreme megalomania; a by-product of solipsism.
Blashemers, insane, megalomaniacs.
Delusions of grandeur.
Monotheistic, or a monotheist.
Polytheistic. People that believe in one god are monotheistic.
he believes in god and he believes that god is the one and only god
Satanists believe in God, and know that it was He who created the world, they just choose to worship Satan instead of worshiping God. If one believes in Satan, then they also believe in God; even Satan himself believes in the existence of God.
Belief in only one god
There may be more than one, but Christianity believes that God is an infinite being.
He who believes in one God and obeys Gods commands.
Is when one believes in himself
Sikhism as a religion believes in only One God.
A theist is one who believes in God. The opposite term is atheist, who is one who does not believe in God.
Not one I've ever heard of. Most either ignore him, call him a prophet, or the Son of God.
God has no birthday he has been there even when the time itself was not created God as created everything he himself is uncreated That is why he is God We have only one and true God Which we call him as ALLAH .