4. ἕκαστοι (first occurrence). So ABG2, 17, vulg, Bas Ambr. אCD2K2LP, most cursives, goth syr (pesh and harkl), Hilar Victorin ἕκαστος. All recent editors (but Wordsw) ἕκαστοι. But the evidence for ἕκαστος is considerable.
σκοποῦντες. So אABCD2G2P, several cursives, vulg goth, Basil and some fathers. L, most cursives, Chrys Theodoret Damasc σκοπεῖτε. K, 73, syr (pesh and harkl), Theophylact and some fathers, σκοπείτω. All editors σκοποῦντες.
ἕκαστοι (second occurrence). So אBCD2, 17, a few other cursives, Victorin. KL, most cursives, syr (pesh and harkl), Chrys Theodoret Damasc ἕκαστος. All recent editors ἕκαστοι.