The Key *Isaiah 33:6

The key to all treasure (physical and spiritual) is the fear of the Lord God of Israel.
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6 He will be the sure foundation for your times,
a rich store of salvation and wisdom and knowledge;
the fear of the LORD is the key to this treasure.
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https://www.biblegateway.com/passage/?search=Isaiah+33%3A6&version=NKJV;NIV