>>42367173She says "O ye of little talent."
Instead of "O ye of little faith."
And "Ye" is plural but she's only addressing Applejack, so she is quoting. Plus, obviously that's where the writers took it from. But in canon what does that mean? Obviously it means Jesus exists in Equestria. Most likely Trixie has read the Bible or at least the New Testament and remembered the words of Christ here and decided to use them modified. It's amazing that her secret christian story to her character was intended by Lauren Faust.