This is a rather free translation and paraphrase of both Isaiah 29:10,13, and Deuteronomy 29:3,4, noting that Israel as a nation has been judicially blinded and deafened as a result of its volitional refusal to see or hear the true revelation and will of God.

Source:

KJV Defenders Study Bible, by Dr. Henry Morris, Ph.D.
Publisher: Thomas Nelson
Language: English
DEF 10 ISBN 0-529-10444-x
DEF 10-1 ISBN 0-529-10445-8