Concerning our brother Apollos, I greatly desired him to come unto you with the brethren: but his will was not at all to come at this time; but he will come when he shall have opportunity.
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Ambrosiaster
AD 400
Paul is hinting that Apollos did not want to go to Corinth because the church there was divided, in the hope that when they heard this they would be eager to make peace. Apollos would come when the church reached agreement. Commentary on Paul’s Epistles.