Knowest
Zechariah 4:5
Then the angel that talked with me answered and said unto me, Knowest thou not what these be? And I said, No, my lord.
Hebrews 5:11
Of whom we have many things to say, and hard to be uttered, seeing ye are dull of hearing.
Hebrews 5:12
For when for the time ye ought to be teachers, ye have need that one teach you again which be the first principles of the oracles of God; and are become such as have need of milk, and not of strong meat.