7:11,12 And all the angels... and the elders and the four beasts. In Re 5:11-14 the elders, four living creatures, the angels about the throne, and every creature join in the praises. Here again all are named, and the angels worship and join in praising God for the blessed scene they have just beheld.
7:11 And all the angels stood - In waiting. Round about the throne, and the elders and the four living creatures - That is, the living creatures, next the throne; the elders, round these; and the angels, round them both. And they fell on their faces - So do the elders, once only, Rev 11:16. The heavenly ceremonial has its fixed order and measure.
7:9-12 The first fruits of Christ having led the way, the Gentiles converted later follow, and ascribe their salvation to God and the Redeemer, with triumph. In acts of religious worship we come nigh to God, and must come by Christ; the throne of God could not be approached by sinners, were it not for a Mediator. They were clothed with the robes of justification, holiness, and victory; and they had palms in their hands, as conquerors used to appear in their triumphs. Such a glorious appearance will the faithful servants of God make at last, when they have fought the good fight of faith, and finished their course. With a loud voice they gave to God and the Lamb the praise of the great salvation. Those who enjoy eternal happiness must and will bless both the Father and the Son; they will do it publicly, and with fervour. We see what is the work of heaven, and we ought to begin it now, to have our hearts much in it, and to long for that world where our praises, as well as our happiness, will be made perfect.