John Trapp on Job 4:18

Verſe 18. Lo he put no truſt in his ſervants, &c.] thoſe meniall, domeſtick ſervants of his, the holy Angels that wait upon him, and are at his hand to doe his will: Servant is a name of office; and they delight rather to be called Angels, (that is, Meſſengers) and miniſtring ſpirits, then Principalities, Thrones, Dominions, &c. Now in theſe God put no truſt, he found no ſuch cauſe to confide in them, becauſe not perfectly ſure and loyall to him, further then upheld and aſſiſted by himſelfe: the vulgar Latine hath it thus, They that ſerve him are not ſtable; that is, the good Angels are not ſtable by their own ſtrength, but by Gods ſtabliſhing of them to ſtand when others fell. Hence Pſal. 68.17. the Angels are called Shinan, as Gods ſeconds, ſay ſome; the Nobles of that Court, the very next unto him: but others ſay they are ſo called from their changeable ſtate, now taken away by Chriſt, under whom they are as an head of government, of influence, of confirmation, but not of Redemption, as we. Chriſt, as God, giveth them their being, and all their excellencies. As Mediator alſo, he maketh uſe of their Miniſtery, for the ſafe-guard and comfort of his people.

And his Angels he charged with folly] That is, he ſpared not the angels that ſinned, as St. Peter expounds it, 2 Pet. 2.4. Their ſinne is ſaid to be folly, that is pride and ſelf-confidence. How this folly and madneſſe of theirs (pravity, the vulgar rendreth it) ſhewes it ſelf, whither in affecting a divinity, or in envy ſtirred up by the Decree of exalting mans nature above Angels in and by Chriſt, and appointing them to be good mens guardians, which office they ſcorned; or whether their pride appeared by tranſgreſſing ſome commandments in particular, not expreſſed, as Adams was, it is hard to ſay. Sure it is, that they abode not in the truth, that they kept not their ſtation &c. and that the good Angels ſtand, and are out of danger of ever falling, it is of divine grace. Hence Exod. 25.19. the Cherubims ſtand upon the Mercy-ſeat, and are made of the matter thereof.