Ὁ . . . ποιοῦσιν is omitted in many mss. (Alexandrian and Western), though included by many too (SBLGNT; brackets in UBS). The prayer is not found in the other Gospels so that may be the reason for its omission by some scribes (and it may have been viewed as contrary to 23:28–31). Internal evidence, such as the sim. prayer [Lk, p. 365] by Stephen (Acts 7:60) and the Lukan theme of forgiveness, supports the original inclusion of the prayer (see Bock 1867–68; Bovon 3.307; Marshall 867–68; e.g., 6:28). Ἄφες, see 6:42 (here, “forgive”). The dat. αὐτοῖς may be a dat. of advantage or complement (BHGNT 721). Οἴδασιν, see 11:44. Ποιοῦσιν, see 6:33 (e.g., 23:31). Διαμεριζόμενοι (nom. pl. masc. of pres. mid. ptc. of διαμερίζω, “divide”) may be temp. (Nolland 1141), or express purpose (“cast lots to divide” NRSV, ESV; Bock 1841). Ἔβαλον, see 21:4. Κλήρους acc. pl. masc. of κλῆρος, -ου, ὁ, “lots” (most EVV; BDAG 548b; “dice” NLT, NET).

Commentary on Luke 23:34 (Alan J. Thompson, Exegetical Guide to the Greek New Testament: Luke)