I don't think it's a kjv translation

Nowhere that I know of.

There is a reason that it is NOT in Scripture, because Thomas is not considered to be scripture.

That would be nowhere

Its from the Gospel of Thomas - and is non-canonical/apocryphal

Thomas...where you also find...2) Jesus said: He who seeks, let him not cease seeking until he finds; and when he finds he will be troubled, and when he is troubled he will be amazed, and he will reign over the All