Why is belief in a higher power required?

[Whateverist]

What makes you certain you can trust your senses if God exists? There are tons of people who come to very different answers using the same methods you use.

I am the creation of a rational God who desires for me to learn about Him through His revealed word and His creation, therefore I can trust my senses enough to learn about His world and His word. You have no justification for trusting your senses because you believe we live in a Universe that is nothing more than matter.

And what, pray tell, is the matter with that? Why shouldn't matter matter? Would you concede that we ungodly are in no worse a position than yourself to believe what our senses tell us than you are believing what your special friend tells you?

Just how is it you know your god is rational, is necessary for you to trust your senses and wants you to learn about Him? (Did he tell you himself?)