World Wide Study Bible
a Bible passage
27. Epaphroditus' sickness proves that the apostles had not ordinarily the permanent gift of miracles, any more than of inspiration: both were vouchsafed to them only for each particular occasion, as the Spirit thought fit.
lest I should have sorrow upon sorrow—namely, the sorrow of losing him by death, in addition to the sorrow of my imprisonment. Here only occurs anything of a sorrowful tone in this Epistle, which generally is most joyous.