Polycarp to Philippians 12
nFor I am persuaded that you are well-trained in the sacred writings, and nothing is hidden from you.  But to myself this is not granted, only, as it is said in these scriptures, "Be ye angry and sin not," and "Let not the sun set on your wrath."
nPolycarp cites Eph 4:26 as included in "sacred writings" and "these scriptures."