* SugarWiki/AwesomeMusic: [[https://youtu.be/2smbbcAgvTE The opening theme]] of the English version is ''insanely'' awesome for a Biblically-based Anime series. By contrast, the Japanese opening theme is a cute kiddie song, but the ending theme is quite beautiful.
* HarsherInHindsight: One episode has AnAesop in the end, showing Judas as a valued apostle, and how friendly he was with the rest of them. But when you think of how things turned out with him...
* NightmareFuel: Episode 5, "Speak of the Devil". Satan has a [[MindRape little fun]] with the kids at the same time he tries to tempt Jesus. The sequences are legitimately horrifying, with the boys chased by dinosaurs and falling victim to a child-eating giant, and Angie watching her reflection in a mirror turn into a Medusa before her very eyes, then cowering in tears as a menacing voice intones, "Isn't it good to be RICH?!!" followed by maniacal laughter. Somehow they all got better, but it legitimately seems like a ScareEmStraight moment, for the viewers as well as the characters.
** The beginning of Episode 14, "Back from the Grave", has Professor Bumble finally return the group home to the 20th century, exactly where and when they left during the storm. At first, all is great; the kids excited and ready to come home to their families. But when Justin runs to his house, he realizes that it's ''gone'' (his swing-set only remaining) and that the landscape around him is completely different. He then walks through a grassy knoll to find a marble stone, which later turns out to be '''''his gravestone'''''. ''Yikes!'' Justin then meets up with Angie and Corky where they learn of the same thing. Immediately figuring out that Prof. Bumble goofed and sent the flying house to ''the far future'', they try to go back to him, but end up knocking down a locked door, suddenly growing white hair and beards. ''Wow.'' Turns out that it was AllJustADream by Justin. A ''horrible'' dream.
** In another episode, a boy cowers in fear while his demonically possessed father destroys their house. And it's not PlayedForLaughs.
** Episode 22 "Judgement Day" has a rather disturbing depiction of Hell despite the super deformed art style in the parable of the rich man and Lazarus.
* TearJerker: Almost every episode has at least one.
** Just the clear fact that three kids from the 20th century end up in a house during a summer storm built by an eccentric professor that just so happens to travel back to Biblical times, ''hundreds of years'' from their time, and away from their families. You can't feel sorry enough for them that they are so far away from their parents for so long.
** Episode 15, "Real Treasure". Poor Zacchaeus.
** The '''''entirety''''' of Episode 41: "Golgotha". The kids and SIR (and the viewers) watch helplessly in horror, sorrow and tears as Jesus is ordered by the Roman Empire to carry his cross to the titular site to be crucified. Their bouts of tears of watching the man they ''literally'' watched grow up with them walk to his end, along with the Son of Man's heart-wrenching cries to the Holy Father, and even ''Professor Bumble'''s anguish from knowing of the story beforehand and the kids' firsthand account of his death (even calling the time machine--something he's bragged about and defended ''the entire series'' an "idiot machine")--among others--makes this episode the series' most heartbreaking and tear-jerking episode. You '''''knew''''' it was coming, and it ''still'' hits you hard.
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