Well, according to my sacred text (the Bible), God has always used humans to tell others about him. So if I leaned from some who carry God's message, I have no issue with that.
That's because people invented (your) god. It's not a surprise that that's how the almighty god communicates, because there are no divine, almighty powers in the natural world to be used.
Science has fortified my belief in God though, or a higher power, if you will. If it takes intelligence to have something as simple as a book, or complex has a CPU, then how much more is intelligence required to have the earth or the very complex human brain?
No, science only denies the existence of god. Science discovers and uses the laws of nature to explain and predict things. That's because the world functions by the laws of nature, not by supposed supernatural stuff. People realized that 500 years ago because of Newton, and that catapulted us into our technological civilization, based on facts instead of faith.
Even more, science doesn't only suggest (and probably sort of proofs when you compare religion vs. technology) that supernatural things do not exist, you can also use the tools of science to explain why people invented god. It isn't hard, and it makes perfect sense; if your god exists, how would you, for example, otherwise explain why all other religions exist and aren't real?
It's always amusing when people use science to try to disprove a scientifically supported idea, and I mean your question. Your failed assumption is that a book is simple and the earth or the human brain is complex. It really is the other way around. The result of the big bang was a huge amount of particles, interacting by the laws of nature. It takes 1 physical process to created stars and galaxies: gravity. Even though the sun might seem complex, it's the easiest thing to form by the laws of nature. It then takes many supernovae to create the particles that make up us -- carbon, oxygen,... --, and after those are formed, planets like the earth can form around stars (I think about 1/2 stars have planets). But then it takes much more processes to create life with 1 cell, animals, and then the conditions must be good for natural selection to let intelligent life develop (life with much neurons or whatever computational thing other life (not on earth) uses, with language, with hands to manipulate the environment,...), and only then can books be formed by those intelligent life forms after all those processes, and only then can science and technology develop and create a CPU, and then if takes even more time for a very fast CPU to be made. A book or a CPU can't just randomly form, that would really be magic, so it's a complex thing to form naturally, even though it may seem simple. The fact that it could be made, doesn't mean that it can be created by simply natural laws, but might take more complex things like life -- which is apparently possible in this universe, else you wouldn't exist.
This is also reflected by the abundance of those things: there are extremely many stars, slightly less stars have planets, less planets have life, less planets with life have more complex life, even less intelligent life and even less have CPUs.
In short, arguing the existence of God/higher power is just as asinine as arguing that the earth is flat.
So, I simply don't engage in debating the existence of God, just like I don't engage in debates with flat earthers. The evidence is overwhelming in favor of a creator.
For us, time will tell. There are many, though.
You just have to realize that you could be wrong. Or do you think you're extremely omnisciently intelligent? It isn't bad to change your opinions, you should always be open for the truth.