Read: Isaiah 29:1-22
The Lord says: These people come near to me with their mouth and honor me with their lips, but their hearts are far from me. Their worship of me is based on merely human rules they have been taught. (Isaiah 29:13)
Israel’s problem was what we would call mechanical religion, meaningless, external conformity to a performance of religious things. This is a grave danger. When you feel yourself becoming spiritually dull, it is a warning sign that says, Watch out! You are headed for trouble. This happens to all of us on occasion. It is healthy to ask yourself at times, Have I lost my zest for God? Do I sing the hymns mechanically? Do the truths of Scripture appear to me dull and common place? Have I lost the sense of joy in my Christian experience? That is a danger sign. That is what this woe is referring to. God’s provision for this is found in the latter part of verse 5 and in verse 6:
Suddenly, in an instant, the Lord Almighty will come with thunder and earthquake and great noise, with windstorm and tempest and flames of a devouring fire. (Isaiah 29:5b-6)