Commentaries:
Robertson's Word Pictures (NT)
And he would not (o de ouk hqelen). Imperfect tense of persistent refusal.
Till he should pay (ewv apodw). This futuristic aorist subjunctive is the rule with ewv for a future goal. He was to stay in prison till he should pay. "He acts on the instinct of a base nature, and also doubtless in accordance with long habits of harsh tyrannical behaviour towards men in his power" (Bruce). On imprisonment for debt among the Greeks and Romans see Deissmann, Light from the Ancient East, pp. 270,330.
Other Robertson's Word Pictures (NT) entries containing Matthew 18:30:
Matthew 6:12
Matthew 14:22
Matthew 18:34
Luke 13:4
John 13:14
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