when he comes to be glorified in his saints, and to be admired among all those who have believed (because our testimony to you was believed) in that day.
Because our testimony - was believed in that day. — The members of this sentence seem to have been strangely transposed. I believe it should be read thus: "In that day, when he shall come to be glorified in his saints, and admired among all them that have believed; for our testimony was believed among you." The Thessalonians had credited what the apostles had said and written, not only concerning Jesus Christ in general, but concerning the day of judgment in particular.