Initially, the show's reluctance to mention Jesus despite Catholicism playing such a prominent role comes off as nothing more than a case of the Jesus Taboo, but the revelation in the final episodes of Season 1 that the things Sabrina has been manipulated into doing are perversions of Jesus' miracles means that the writers had a very good reason to avoid drawing attention to Jesus, as attentive viewers might've drawn the connection before The Reveal.
A related point: Lucifer's Incest Subtext with Sabrina may be another more oblique reference to the "perversions of Christian theology" pattern. Given the nature of the Holy Trinity and the Holy Spirit sometimes being identified as the embodiment of the divine love between the Father and the Son, it follows that Lucifer's unholy trinity, which is meant to be a perversion, would instead involve incest.
Theo being the only one of Sabrina’s Mortal Friends who is not suspicious and paranoid about her being a Wicked witch. Makes lot of sense considering that he often converses with the ghost of his ancestor Dorothea Putnam who knows how the Witch world works and she probably explained everything about the witches to Theo.
Sabrina's Fatal Flaw is, in Ambrose's words, that she always thinks she's in the right and 'demands that the universe give her special privileges'. In other words, Pride. Lucifer was expelled from Heaven for his overweening pride in most tellings of the Fall. Apparently the apple didn't fall quite as far from the tree as Sabrina might like to believe.
Her absolute inability to correctly identify a person or situation that's much too dangerous for her to meddle with also makes perfect sense, purely in view of the fact that she's a witch who was raised alongside mortals. For the first sixteen years of her life, she's never actually needed to recognize danger: she's ridiculously overpowered by the standards of the mundane world and can bulldoze straight through situations that no mortal teen would ever be so blithely confident about (e.g. luring a group of sexually harassing football players out to a deserted mineshaft in the dead of night to take humiliating revenge on them).
A lot of Witches have old fashioned names, and wear old fashioned outfits as the adult witches are thousands or hundreds of years old. While most of the students at the Academy of Unseen Arts, are actually 50 to 90 years old.
It makes sense in Part 1 that Satan backs down after learning about Sabrina's Catholic Baptism- he hates to lose, and so chooses a partial victory over a defeat. Yet he also backs down on a shocking number of his demands: she doesn't have to sign the Book of the Beast, or give up her mortal friends, or even leave Baxter High. He only really succeeds in getting her at the Academy of Unseen Arts, and that only for a few days a week. Satan still has quite a bit of leverage (Zelda and Hilda's youth, Ambrose's freedom, Sabrina's powers) yet doesn't seem to use it. Why? Because Sabrina is his daughter and essentially the Anti-Christ. Satan literally can't afford to hedge his bets in this situation. Lose Sabrina, and not only does he lose his chance at freedom, he risks giving the False God another Jesus. In that situation any hold on Sabrina is a victory because it keeps Satan in the game.
The fact that Lilith will still have the physical appearance of Mary Wardwell. In part 3 makes lot of sense considering that her natural human appearance, is that of a young teenage girl. It also worth mentioning that she said that she enjoys the body of Miss Wardwell.
Lilith's betrayal of Satan should have been a Foregone Conclusion. After all, why Lilith turned into a demon? She refused to submit to Adam's or God's authority. History repeats itself as Satan takes her for granted as his and Sabrina's minion. The lady again has other ideas in mind.
The Academy’s school play casts Sabrina as Lilith, foreshadowing her destiny to be queen of Hell and Lucifer's intent that she replace Lilith as his consort. Likewise, Nick playing Lucifer foreshadows his own fate as Lucifer's living prison.
The Pagans believing that Rosalind poses a threat to their plans. Makes sense because they are actually beings from Greek Mythology, and in Greek myths Seers often warned people about upcoming threats or impending doom.
Mambo Marie prayer (dance) to Bondye may seem odd to those who know something about Vodoun. Worshippers don't worship Bondye(the supreme god) since he is too far removed from humanity who prays to the Loa instead. The revelation that Mambo Marie is actually Baron Samedi makes it brilliant in hindsight. Of course Baron Samedi (a powerful Loa) would not pray to another Loa but rather to the Bondye since he/she acts as a mediator between humanity and true divinity.
Ms Wardwell is alive again at the end of the first series, all well and good — except she has to come to grips with not being able to remember anything for the past few months, and the fact that her fiancee is missing (and, as we know, dead). If his disappearance is linked to her, she might very well be considered a suspect.
She might also end up a suspect in the deaths/disappearances of other Lilith victims, like the man she murdered with an axe to create "Adam" and the student she killed to resurrect the Greendale 13.
Zelda had the Caligari spell — which renders its victims completely in the control of the spell caster, but completely aware the entire time — placed on her by Blackwood on their honeymoon.
The Caligari Spell turns wives that go independent into subservient but conscious slaves, now someone has to consider what if there is a spell that turns rebellious daughters into well-behaved girls who obey their fathers orders without question.
At the end of Part 2 Father Blackwood poisoned a large part of the Coven, with only a handful surviving, and in Zelda‘s nightmare in Part 1 we saw her reading to a group of witch children, and considering that some of the witches who died from the poisoning might have been parents, it means that all these children who are under 16 and haven’t been baptized yet are now orphans.
It's well established that Lilith eats humans, particularly men. When Lilith has dinner with Adam (actually Satan in disguise), she compliments his cooking. When Satan reveals it was Adam on the menu all along, it's likely that Lilith enjoyed the meal because it was human flesh - whether she was aware of it at the time or not.
The thought of the Weird Sisters finding out about the accusations, of Rosalind and Harvey that Sabrina caused Rosalind’s blindness out of jealousy. Even though she said it was ok for her if Rosalind was hanging out with Harvey, and considering what Agatha and Dorcas did after Harvey’s grandfather killed a Familiar. It’s very likely that they would punish Rosalind and Harvey in a cruel repulsive and despicable way.
When Agatha killed Dorcas, she was trapped in a state of madness now imagine how she would react once her sanity gets restored. Realizing that she butchered her sister it would be terrible if she would find out what she did, considering that despite all her cruelty and evilness she genuinely loves her sisters.
We get to see the aftermath to this in Part 4, from both her and Prudence, and the scene is a real Tear Jerker
Back in early Season 1, Sabrina agrees to be publicly examined for a witch's mark (something resembling a mole or a birthmark, somewhere on her body) as a way of determining whether the Dark Lord has a legitimate claim on her. She's explicitly consenting to be strip-searched in front of the entire coven by Father Blackwood, of all people. Zelda, who has some intimate history with the man, is really not happy with this idea.
Zelda's reluctant admission that she would never have allowed the coven to eat Sabrina during the Feast of Feasts becomes both heartbreaking and straight-up nightmare fuel when you realize how likely it is that if Sabrina had been chosen for ritual sacrifice and cannibalism, the only way for Zelda to successfully derail the proceedings would have been to slit her own throat and be devoured by the coven instead, the way Mildred just did.
