Matthew Poole and continuators on 2 Corinthians 6:2

2 For he saith, I have heard thee in a time accepted, and in the day of salvation have I succoured thee : behold, now is the accepted time, behold, now is the day of salvation .

The words here quoted, are taken out of the Prophet Isaiah, 49.8. according to the Septuagint's Translation. Though some think, that the Apostle here doth but accommodate to the Spiritual Salvation brought in by Christ, a temporal Salvation mentioned, and primarily intended; yet the most and best Interpreters rather judge, that whole Chapter in Isaiah to refer to Christ, and that the Salvation there mentioned, is to be understood of the Spiritual Salvation of the Gospel; of which also the Apostle speaketh here, and maketh these words (as in the Prophet) the words of God the Father to Christ his Son, testifying both his assistance of him in the accomplishment of the work of mans redemption, and his acceptance of him; According to which sense, the Accepted time is the same with what the Apostle calls, The fulness of time; (though it may also be so called in the same sense that the Apostle calleth the Gospel a faithful Saying, worthy of all acceptation, 1 Tim. 1.15.) in which sense the Gospel-time was prophesied of as an acceptable time, Gen. 49.10. Haggai 1.8.

Now is that accepted, or acceptable time, now is that day of salvation spoken of by the Prophet; therefore you are concerned to receive this Grace of the Gospel, and to live up to the Rule of it.