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>> “The Bible affirms the Christ and the Trinity.” <<
There is no “trinity” evident in the Bible. It is a concoction from the mid 4th century. At that time Eusebius added “The Father, The Son, and The Holy Spirit” to three verses.
I think the Bible does affirm it, but it also affirms Christ as God, at any rate.
As I said, Muslims don’t have an answer to this one verse. It’s an impossible conundrum to them, without being able to say the Bible is true. The Bible that Muhammad says is true was ratified at the Nicaean Council, which we base our understandings about it today.