Commentaries:
Robertson's Word Pictures (NT)
Used to release (apeluen). Imperfect tense of customary action where Matthew 27:15 has the verb eiwqei (was accustomed to).
They asked of him (parhtounto). Imperfect middle, expressing their habit also.
Other Robertson's Word Pictures (NT) entries containing Mark 15:6:
Luke 14:18
Luke 23:16
John 18:39
Hebrews 12:19
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