Charles Ellicott Commentary 2 Corinthians 10:11

"Let such a one reckon this, that, what we are in word by letters when we are absent, such [are we] also in deed when we are present." — 2 Corinthians 10:11 (ASV)

Such will we be also.—As a verb of some kind must be supplied, it would be better to give the present: Such are we. It is not so much a threat of what will happen in a particular instance as a statement of the general consistent character of his life.