Strong’s Greek
G614 — apokruphos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἀπόκρυφος
apokruphos — pronounced ap-ok'-roo-fos
from 613; secret; by implication, treasured:--hid, kept secret. see GREEK for 613
3 occurrences in the KJV.
Mark 4:22
For there is nothing hid, which shall not be manifested; neither was any thing kept secret, but that it should come abroad.
Luke 8:17
For nothing is secret, that shall not be made manifest; neither any thing hid, that shall not be known and come abroad.
Colossians 2:3
In whom are hid all the treasures of wisdom and knowledge.