He said, "Go and tell this people: "'Be ever hearing, but never understanding; be ever seeing, but never perceiving.' 10 Make the heart of this people calloused; make their ears dull and close their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn and be healed." Isaiah 6:9-10Encryption techniques such as Hebrew letter sequence codes, gematria and other numerical devices and architectural structures are merely some of the technical means. The "veil," however, describes what I think is the dominant means.
Put a veil over their hearts, and may your curse be on them! Lamentations 3:65This veil is not a single veil, which, when taken away, reveals all there is to be seen. It is a layered veiling, a matter of limits and degrees. In a military or a corporate environment, there are various levels of security access, a system that is monitored very closely. Granting access to only the right people at the right time is the critical feature of an appropriate security system. Security clearance is a special privelege granted to the trustworthy on a "need to know" basis.
We are not like Moses, who would put a veil over his face to keep the Israelites from gazing at it while the radiance was fading away. 14 But their minds were made dull, for to this day the same veil remains when the old covenant is read. It has not been removed, because only in Christ is it taken away. 15 Even to this day when Moses is read, a veil covers their hearts. 16 But whenever anyone turns to the Lord, the veil is taken away. 17 Now the Lord is the Spirit, and where the Spirit of the Lord is, there is freedom. 18 And we, who with unveiled faces all reflect the Lord's glory, are being transformed into his likeness with ever-increasing glory, which comes from the Lord, who is the Spirit. 2 Corinthians 3:13-18
And Elisha prayed, "O LORD, open his eyes so he may see." Then the LORD opened the servant's eyes, and he looked and saw the hills full of horses and chariots of fire all around Elisha. 2 Kings 6:17The matter of gaining access to a higher level of security access is the subject of my presentation on Keys to Developing a Hearing Ear.