NET

6 Therefore we are always full of courage, and we know that as long as we are alive here on earth we are absent from the Lord—

Darby

6 Therefore [we are] always confident, and know^D8422 that while present^D8423 in the body we are absent^D8424 from the Lord,

Darby Bible Notes

know - Lit. 'knowing' (from oida, conscious knowledge). It was their state; confident and knowing. present - The Greek words translated 'present' and 'absent' are literally 'at home' and 'away from home.' absent - The Greek words translated 'present' and 'absent' are literally 'at home' and 'away from home.'

KJV

6 Therefore [we are] always confident, knowing that, whilst we are at home in the body, we are absent from the Lord: