Jamieson, Fausset and Brown on 2 Corinthians 7:2

2. Receive us--with enlarged hearts (2Co 6:13).

we have wronged ... corrupter ... defrauded no man--(compare 2Co 7:9). This is the ground on which he asks their reception of (making room for) him in their hearts. We wronged none by an undue exercise of apostolic authority; 2Co 7:13 gives an instance in point. We have corrupted none, namely, by beguilements and flatteries, while preaching "another Gospel," as the false teachers did (2Co 11:3, 4). We have defrauded none by "making a gain" of you (2Co 12:17). Modestly he leaves them to supply the positive good which he had done; suffering all things himself that they might be benefited (2Co 7:9, 12; 2Co 12:13).