Let all the Angels of God adore him. These words seem to be cited out of Psalm xcvi. 7., according to the Septuagint. And they seem to be an invitation, and a command to the Angels to adore Jesus Christ, when at the end of the world he shall come to judgment. This is one of the proofs which St. Paul here brings, to show that the Angels are inferior to Christ, because they are commanded to adore him. (Witham)
God shows the superiority of his divine Son over the Angels, in ordering the latter to adore him. Wherever the person of Christ is, there it ought to be adored by both men and Angels, therefore in the blessed sacrament .
Our Lord Jesus Christ calls His coming in the flesh an exodus [or going out]: as when He says, The sower went out to sow. Matthew 13:3 And again, I went out from the Father, and have come. John 16:28 And in many places one may see this. But Paul calls it an [eisodus or] coming in, saying, And when again He brings in the First-Begotten into the world, meaning by this Bringing in, His taking on Him flesh.
Now why has he so used the expression? The things signified [thereby] are manifest, and in what respect it is [thus] said. For Christ indeed calls it a Going out, justly; for we were out from God. For as in royal palaces, prisoners and those who have offended the king, stand without, and he who desires to reconcile them, does not bring them in, but himself going out discourses with them, until having made them meet for the king's presence, he may bring them in, so also Christ has done. Having gone out to us, that is, having taken flesh, and having discoursed to us of the King's matte...