For there is nothing covered. — More accurately, but there is nothing... The Greek conjunction cannot possibly have the meaning of “for,” and the latter word suggests a logical connection which is different from that of the original. What our Lord seems to say is, “Beware ye of... hypocrisy...; but, whether ye beware or not, know that all that is now secret will one day be manifested.” On the verse itself, see Note on Matthew 11:25. The connection in the two passages is, however, very different. There the underlying thought of a future day of revelation (see 1 Corinthians 4:5) is made a motive to courage in proclaiming truths that had been received in secret; here as a motive to caution, lest we should be trusting in the counterfeits of truth and holiness. The force of the two Greek words would, perhaps, be better expressed by, There is nothing veiled that shall not be unveiled.
Luke 12:2
2 For there is nothing covered, that shall not be revealed; neither hid, that shall not be known.