NET
4 For we groan while we are in this tent, since we are weighed down, because we do not want to be unclothed, but clothed, so that what is mortal may be swallowed up by life.
Darby
4 For indeed we who are in the tabernacle groan, being burdened; while yet we do not wish to be unclothed, but clothed, that [what is] mortal may be swallowed up by life.
KJV
4 For we that are in [this] tabernacle do groan, being burdened: not for that we would be unclothed, but clothed upon, that mortality might be swallowed up of life.