Commentaries:
Jamieson, Fausset, and Brown
key of knowledge—not the key to open knowledge, but knowledge, the only key to open heaven. In Matthew 23:13, they are accused of shutting heaven; here of taking away the key, which was worse. A right knowledge of God's Word is eternal life (John 17:3); but this they took away from the people, substituting for it their wretched traditions.
Other Jamieson, Fausset, and Brown entries containing Luke 11:52:
Matthew 23:13
Mark 13:29
1 Timothy 1:13
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