Ambrose of Milan — on 2Tim 4:2 (Letter 41)

“Hence the Apostle says, "What will ye, shall I come unto you with a rod, or in love, and in the spirit of meekness." First he speaks of a rod, and as with the rod of an almond tree had smitten the wanderers, that he might afterwards comfort them with the spirit of meekness. Just so did meekness restore the man whom the rod had driven from the Divine sacraments. To his disciple too he gave the same injunctions, "Reprove, beseech, rebuke." Here are two harsh terms and one gentle; but they are only harsh, that they may themselves be softened. For like as bitter food or drink becomes sweet to these bodies which are laden with excess of gall, and on the other hand sweet repasts are bitter to them, so also when the mind is wounded it languishes under the flattering touch of pleasure, but is healed again by the bitterness of correction.”