help please

I'm pretty sure it was water...?

Water, and self-doubt enough to start doing stupid things that will only end up in getting himself killed.

Seth's weakness is the self-destructive lack of faith in his own strength that Osiris planted in him: every time he becomes overwhelmed by self-doubt, it causes him to brutally lash out in manners that will cause others to respond in kind out of self-defense, escalating the violence and the destruction that, like karma, will only end up coming back to hurt Seth himself, in the end. Sekhmet made Horus understand Seth's violence is like a boomerang: it always ends coming back to hurt him. Thanks to Sekhmet, Horus is now fully able tounderstand Seth's feelings and behavior are all basically like the ones of "a cornered animal". Remembering Sekhmet's words right now serves to show readers why Horus is not resenting Seth for trying to kill him right now: he knows now for sure that his extreme angry reactions and lashing out are not because Seth's evil, but rather just because he's afraid and he feels threatened. And the reason he feels this threatened and afraid is because he's lost faith in his own strength. This is a weakness because it induces Seth to do extreme things that he would later regret, and moreover it causes the people he lashes out at, like Isis, to react with extreme actions in response, causing a chain-reaction that could end up getting Seth killed by the actions a desperate victim like Isis could set in motion, out of sheer desperation. Horus has realized that every time Seth lashes out at others, he sets in motion a vicious cycle of action and reaction, revenge and counter revenge, that would only end up getting many people really hurt in the process (among them, also Seth himself) and Horus' finally realized he needs to put a stop to it before it gets out of control and the consequences become irreversible.

Ohhh okay thank you!

Thank you so much for taking the time to respond in such detail! I completely understand what is going on now. :)