{10} And one of the elders answered, saying unto me, What are these which are arrayed in white robes? and whence came they?

(10) A passage over to the explanation of the vision, which the angel enquires of John to stir him up in this verse and John in the form of speech, both acknowledges his own ignorance, attributing knowledge to the angel, and also in a humble manner requests the explanation of the vision.

People's New Testament

7:13 What are these which are arrayed in white robes? and whence came they? The questions are asked by the elder that he may teach. These refer to the vast multitude described in Re 7:9.

Wesley's Notes

7:13 And one of the elders - What stands, verse s 13 - 17, Rev 7:13 - 17 might have immediately followed the tenth verse ; but that the praise of the angels, which was at the same time with that of the great multitude, came in between. Answered - He answered St. John's desire to know, not any words that he spoke.

Jamieson-Fausset-Brown Bible Commentary

13. answered-namely, to my thoughts; spoke, asking the question which might have been expected to arise in John's mind from what has gone before. One of the twenty-four elders, representing the Old and New Testament ministry, appropriately acts as interpreter of this vision of the glorified Church.

What, &c.-Greek order, "These which are arrayed in white robes, WHO are they?"

Matthew Henry's Concise Commentary

7:13-17 Faithful Christians deserve our notice and respect; we should mark the upright. Those who would gain knowledge, must not be ashamed to seek instruction from any who can give it. The way to heaven is through many tribulations; but tribulation, how great soever, shall not separate us from the love of God. Tribulation makes heaven more welcome and more glorious. It is not the blood of the martyrs, but the blood of the Lamb, that can wash away sin, and make the soul pure and clean in the sight of God; other blood stains, this is the only blood that makes the robes of the saints white and clean. They are happy in their employment; heaven is a state of service, though not of suffering; it is a state of rest, but not of sloth; it isa praising, delightful rest. They have had sorrows, and shed many tears on account of sin and affliction; but God himself, with his own gracious hand, will wipe those tears away. He deals with them as a tender father. This should support the Christian under all his troubles. As all the redeemed owe their happiness wholly to sovereign mercy; so the work and worship of God their Saviour is their element; his presence and favour complete their happiness, nor can they conceive of any other joy. To Him may all his people come; from him they receive every needed grace; and to him let them offer all praise and glory.