Sir Isaac Newton (1642-1727) was born into a Christian family. A regular church-goer, he can be said to have been a religious man in every sense of the word. But he is known to the world as a scientist, not as a man of religion. He spent his whole life setting down the results of his research into the solar system, and it is in this capacity that the world has come to know him.
The same is true of most scientists. Most of them have–in their personal lives–been religious men. They were generally born into Christian or Jewish families, and remained associated with their ancestral religion until the end of their lives.
But the thing that these scientists presented to the world was science, not their ancestral religion. They spent their whole lives delving into the mysteries of science and devoted their energies to handing the results of their endeavours on to the world.
If they themselves had discovered the religion they adhered to, they could not but have proclaimed it to the rest of the world.