NT-EPISTLES.filter - kjv ye know not:

kjv@James:4:14 @ Whereas ye know not what shall be on the morrow. For what is your life? It is even a vapour, that appeareth for a little time, and then vanisheth away.

kjv@1John:2:21 @ I have not written unto you because ye know not the truth, but because ye know it, and that no lie is of the truth.