The realities before us proves that we are not serving the same God. There are so many gods in the world. As there are so many and different religions, there are many gods. There are different kinds of gods which the different cultures and traditions of the world accept.
There are religions who do not believe in the Lord Jesus Christ. They do not believe that Jesus Christ is the Son of God. They do not believe that Jesus Christ died and rose again from the dead. That is a different religion from the one who believes in Jesus Christ as God.
Some religions do not believe in the writings of the apostle Paul. They reject the writings of the Bible. Some allegedly christian organizations do not believe in the entire Bible. These kinds of religious groups practice a different religion from those who believe and accept the entire Bible.
Many people worship celestial bodies. They worship the moon, the stars, the planets etc. Some people worship animals. Many countries in the world, they worship snakes. Some other people created their own gods. So, there are so many religions in the world.
With all these realities, it is clear that we are not serving the same God. The true God is only one. He is the God who created the entire universe. He alone is God. Others are not God, they are the imagination of man's heart.