A.T. Robertson Commentary 2 Corinthians 5:6

"Being therefore always of good courage, and knowing that, whilst we are at home in the body, we are absent from the Lord" — 2 Corinthians 5:6 (ASV)

At home in the body (ενδημουντες εν τω σωματ). Rare verb ενδημεω from ενδημος (one among his own people as opposed to εκδημος, one away from home). Both εκδημεω (more common in the old Greek) and ενδημεω occur in the papyri with the contrast made by Paul here.