Psalm 37:1

““Be not envious because of evil-doers, neither be envious against the workers of iniquity” (ver. 1).” — the author cites it

“For some [of them] indeed were sitting as captives, but others did not even feel their captivity, as Daniel, as the three children (cf. Ps. cxxxvii. 1 ); who even while they were in captivity became in that very country more glorious even than the king who had carried them captive.” — the author cites it

“And in the thirty-sixth Psalm, which he has filled with moral precepts, he has put at the very beginning: “Be not malignant amongst the malignant, neither be envious of those who do iniquity.”” — editor's note: Ps. xxxvii. [xxxvi.] 1.