How is “god's gift” used?

In Robin Hood (2018), one line is: “The young are God's gift to the church.”

Which movie is “god's gift” from?

The clip at the top of this page is from Robin Hood (2018).

The young are God's gift to the church.

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イディオム

a person who thinks that they are particularly good at sth or who thinks that sb will find them particularly attractive

皮肉 · 6 本の映画に登場

God's gift (to sb / sth)
a person who thinks that they are particularly good at sth or who thinks that sb will find them particularly attractive
He seems to think he's God's gift to women.

定義：Oxford Advanced Learner's Dictionary 第 9 版