What were the chanted commentaries added to embellish biblical text in church services known as?

The chanted commentaries added to embellish biblical text in church services are known as mysteries

Explanation:

“Mystery” in religious terms refers to a sacred secret. It is something that had been hidden in the past but was eventually revealed. This talks about the secrets that had been hidden in the Old Testament are revealed in the New testament. There are other uses of the word mystery en religious such as "mystery can be something about god that humans cannot completely comprehend" and "mystery may refer to something about God that cannot logically be understood". All this is deeply connected to faith.

we use triangle sum thereom for this answer. which states that x+y+z=180

so 79+37+y=180

solve, and you get 64 degrees.

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