The god of Christianity, Yahweh/Jesus/Holy Ghost didn’t show up in scripture fully formed. His powers kind of grew like Topsy, created on the fly by ordinary human beings.
Some of these are logical consequences and some are hidden presumptions. For example, claiming that this god is all-knowing means that in order to “recall” any fact from his memory, he only needs to recall the past or future action. This requires this god to have one hell of a memory, but is not unthinkable. But there are inherent problems associated with claiming this power for this god. Here is a typical question on Quora asking about this consequence. “If God knows my whole life from beginning to end, did he imagine me before he created me? If he imagined all the things I will say and do, is it him being me doing these things? I imagine people doing whatever but it’s not them doing what they do.” Basically this question is asking that if this god knows everything I am going to do, do I have free will? The straightforward answer is an obvious “no” and the consequence is we should not be held accountable for our actions because we were programmed by god to do those things. I will leave it to you to unpack these arguments because they have been around for almost all of human history.
Other consequences are somewhat loaded with creator responsibility. (Not Creator responsibility, but creator responsibility.) We claim that this god hears our prayers and may act upon them right away. We also claim that this god is omnipresent, that he is always observing you and listening to you speak. Is this really necessary? It involves a human foible, that of someone needing to be within “ear shot” to witness what you say . . . and within “line of sight” to see what you do. Is this necessary of this particular god? Absolutely not. If he is all-knowing, he already knows all that you have said and will say and do. He doesn’t need to be “there” to witness your prayer or your actions. He doesn’t even need to show up to perform the miracle you are praying for. He can do anything remotely, plus the fact that he has tens of thousands of angels on the payroll, most of the time sitting around eating his food and drinking his wine, the lazy bastards can be sent to do some work for once. And, since the all-knowing god already knows, he can schedule this angel to do that task, months, years, or millennia ahead of time to avoid any time pressure.
So, being omnipresent is a useless power for such a god. It is only there because of human assumptions about how humans behave, not gods. And this is not the only example of a god’s powers being woven out of thin air, cut from whole cloth, etc.
Consider why Yahweh/Jesus/Holy Ghost has “messengers” or “helpers.” So, why?
Basically this is because they were created in the previous tradition, by the creators ofYahweh, and Jesus was “the Son,” so they had to be kept in Christianity. The baggage, of course, involves devils, demons, and a whole zoo of other supernatural beings in attendance on this god.
But are they needed? You’ve probably heard this argument before. This god has demonstrated the ability to think things into existence (whole galaxies, etc.) and communicate across vast distances. So, does he need “helpers” of any kind? The answer is “no.” In fact assigning a task to an angel (or cherubim, or . . .) takes as much effort or more that doing it himself, just by thinking whatever he wants into existence.
Some claim that these beings are there for purposes of companionship. Companionship is something people need, by does this god? The answer is no. This god is claimed to be perfect, whole, and needing of nothing.
But then . . . this is the god who punished Lucifer for the sin of pride and who created an entire species of sentient beings … to worship him. Remember the speck in your brother’s eye and the beam in yours story. Yeah, like that.