Sirach 2:4
Ben Sira, Ecclesiasticus
2 Set your heart right and be steadfast, and do not be impetuous in time of calamity. 3 Cling to him and do not depart, so that your last days may be prosperous. 4 Accept whatever befalls you, and in times of humiliation be patient. 5 For gold is tested in the fire, and those found acceptable, in the furnace of humiliation. 6 Trust in him, and he will help you; make your ways straight, and hope in him.
Didache 3:10
8 Be thou long-suffering, and merciful and guileless, and quiet, and good, and ever fearing the words which thou hast heard. 9 Thou shalt not exalt thyself, nor let thy soul be presumptuous. Thy soul shall not consort with the lofty, but thou shalt walk with righteous and humble men. 10 Receive the accidents that befall to thee as good, knowing that nothing happens without God.