In this chapter, God surprises Abraham by telling him to kill the child. The true shock is that in the previous chapter God said that Isaac was the one his countless descendants would come from, but now this?! There's a strong argument to be made that this wasn't an emotional moment at all due to interpersonal relationships, but because Abraham was losing his main heir (having just sent his other one to die in the desert). But, once again, God slides in right after the victim gets PTSD and stops the event from happening. Abraham has proved himself (God isn't all-knowing), so God provides a ram to step in as a completely and utterly arbitrary placeholder for a sacrifice. But it's not a sacrifice, is it? It's just a random, pointless ram that doesn't mean anything. God just put this little theatrical presentation together so he could watch Abraham kill a meaningless ram he materialized in a bush.