The most common and most likely answer to this crossword clue is the 10 letter word BEATITUDES
I've seen this crossword clue in The Guardian
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More clues leading to the result BEATITUDES
Buddy explains!
The straight part
We know that "Jesus’ words of comfort for the poor in spirit etc" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case jesus’ words of comfort for the poor in spirit etc = beatitudes.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does BEATITUDES mean?
BEATITUDES noun- Supreme, utmost bliss and happiness.
- Any one of the Biblical blessings given by Jesus in Matthew 5:3–12. E.g.: "Blessed are the meek for they shall inherit the earth"(Matthew 5:5).