Then by those bringing down the rememberance (4)
4. One probability is that if all these five qualities are of the angels then its meaning would be I take an oath of the angels who are continuously sent to you. Then they move so swiftly between you and your Lord like the gust of wind and they spread their wings before you in total respect. Then they bring the verses, which help to differentiate between Truth and falsehood. Thereafter these angels present Zikr of Allah on him.
From this commentary a few benefits are derived:
2. If these angels have achieved such loftiness, that due to little service they became worthy of Divine Oath, then what about those Noble Companions who had been close to the like shadow of the Holy Prophet صلى الله عليه وآله وسلم What can one say about their greatness?