10 when he comes in that day to be glorified in his saints, and to be admired among all those who have believed, because our testimony to you was believed.
“when he comes in that day” The day that it is referring to is the 2nd coming of our Lord and Savior, Jesus Christ who is going to reign for 1000 years on earth.
“to be glorified in his saints” Suggests that the saints [Christians] will acknowledge Jesus’ status as Creator, Sustainer, Savior, the Christ, and Yahweh when He returns.
“and to be admired among all those who have believed” To be in awe of His glory, which will reveal the love that all believers have for Jesus and for His redemption.
Spiritual Minefield 