I’m going to second this opinion. You’re not going to find an anime that’s Christian in philosophy/religious doctrine. There are a decent number that use Christianity as a motif or setting however. Chrono Crusade is maybe the closest you’ll get. Or you can go the Maria-Sama ga Miteru direction, which takes place at a Catholic girls school (but all the characters are lesbians, and it aired in an era when the Catholic Church was very anti-LGBTQ so…)
Edit: Kids on the Slope has Christianity (or rather, being a Christian in Japan) as a minor theme, and it’s historical fiction so it might be one of the most accurate portrayals of Christianity in anime.
I’m going to second this opinion. You’re not going to find an anime that’s Christian in philosophy/religious doctrine. There are a decent number that use Christianity as a motif or setting however. Chrono Crusade is maybe the closest you’ll get. Or you can go the Maria-Sama ga Miteru direction, which takes place at a Catholic girls school (but all the characters are lesbians, and it aired in an era when the Catholic Church was very anti-LGBTQ so…)
Edit: Kids on the Slope has Christianity (or rather, being a Christian in Japan) as a minor theme, and it’s historical fiction so it might be one of the most accurate portrayals of Christianity in anime.