Commentaries:
Jamieson, Fausset, and Brown
The language is not necessarily imprecatory, but rather a confident expectation (Psalms 5:11), though the former sense is not inconsistent with Christ's prayer for the forgiveness of His murderers, inasmuch as their confusion and shame might be the very means to prepare them for humbly seeking forgiveness (compare Acts 2:37).
Other Jamieson, Fausset, and Brown entries containing Psalms 40:14:
Psalms 41:10
Psalms 71:13
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