The Apostle Paul
2 Corinthians 6:8BSB·traditional attribution

through glory and dishonor, slander and praise; viewed as imposters, yet genuine;

John Calvin Reformed @genevareformer

8. By honor and dishonor This is no slight test for subjecting a man to trial, for to a man of a noble spirit nothing is more unpleasant, than to incur disgrace. Hence we may observe in all histories, that there have been few men of heroism that have not fallen back, on being irritated by insults.

Matthew Henry Presbyterian @wholebiblehenry

In these verses we have an account of the apostle's general errand and exhortation to all to whom he preached in every place where he came, with the several arguments and methods he used. Observe, I. The errand or exhortation itself, namely, to comply with the gospel offers of reconciliation - that, being favoured with the gospel, they would not receive this grace of God in vain, Co2 6:1.

Commenting on 2 Corinthians 6:1-10

John Gill Reformed Baptist @doctorgill

As unknown, and yet well known,.... Not unknown to Father, Son, and Spirit, or to one another, but to the world; and that not with respect to their outward estate, but their spiritual and eternal state; as that they were the chosen of God, the children of God, and born again; they knew not what a life they lived, or what they lived upon; and...