sorry but im not english, and im not a bible readerLet's use our heads, shall we?
Dude's name is "Matty King".
"Matty" is an informal version/nickname of the name "Matt"
Which means, "Matt" is the short version of the name Mat***
If you need even more of a hint, it's a biblical name.
It's not that hard to figure out, even for non-english speakers.