And to you who are troubled rest with us, when the Lord Jesus shall be revealed from heaven with his mighty angels,
Rest - governed by "to recompense" (2 Thessalonians 1:6) х Anesin (G425), relaxation: loosening the tension, epitasis, which preceded; relaxing the strings of endurance now so tightly drawn. Anapausis (G372), "rest" (Matthew 11:28; Revelation 14:13), is cessation from labour. Sabbatismos (G4520) (Hebrews 4:9), 'a keeping of Sabbath.']
With us - namely, Paul, Silas, and Timothy, who are troubled like yourselves (2 Thessalonians 3:2).
When - not sooner, not later.
The, Lord Jesus shall be revealed - for now He is hidden, and our life hidden with Him (Colossians 3:3-4).
With his mighty angels (Greek, 'with the angels of His power') - i:e., the ministers by whom He makes His power to be recognized (Matthew 13:41-42). It is not their, but 'His might' which is prominent.