When he shall come to be glorified in his saints, and to be admired in all them that believe (because our testimony among you was believed) in that day.
All Commentaries on 2 Thessalonians 1:10 Go To 2 Thessalonians 1
Thietland of Einsiedeln
AD 1000
because our testimony has been believed by you
They also call their testimony evangelical teaching, that which indeed was entrusted to them, because they received evangelical teaching from those preaching it.