Therefore the Lord said,
Since this people draw near me with their mouth, and with their lips do honor me, but have removed their heart far from me, and their fear toward me is taught by the precept of men:
All Commentaries on Isaiah 29:13 Go To Isaiah 29
Cassiodorus Senator
AD 585
The habit of sinners is … after they have achieved the aspiration of their most wicked plans, they then give thanks to the Godhead since they have attained their wish. But they in their utter wretchedness do not realize that he originates only successful aspirations that are holy. “They shall bless” not with their hearts but their mouths, the source of hypocritical utterances for the most part. As Isaiah says, “This people glorify me with their lips, but their heart is far from me.”