The readers are addressed by name in only two other epistles, Gal 3:1; Phi 4:15.
Is enlarged (πεπλάτυνται)
Only here, 2Co 6:13, and Mat 23:5, where it is used of widening the phylacteries. From πλατύς broad. Quite common in the Septuagint, and with various shades of meaning, but usually rendered enlarge. Of worldly prosperity, “waxed fat,” Deu 32:15; compare Gen 9:27. Of pride, Deu 11:16. Of deliverance in distress, Psa 4:1. Expand with joy, Psa 119:32. The idea of enlargement of heart in the sense of increased breadth of sympathy and understanding, as here, is also expressed in the Old Testament by other words, as concerning Solomon, to whom God gave largeness of heart, Sept., χύμα outpouring. Compare Isa 60:5.