when he shall come to be glorified in his saints, and to be marvelled at in all them that believed (because our testimony unto you was believed) in that day.

on the day He comes to be glorified in His saints and regarded with wonder by all who have believed, including you who have believed our testimony.

when He may come to be glorified in his saints, and to be wondered at in all those believing--because our testimony was believed among you--in that day;

when he shall have come to be glorified in his saints, and wondered at in all that have believed, (for our testimony to you has been believed,) in that day.