Does a man harbor anger (sunthrei orghn) against another and yet seek healing from the Lord? Does he have no mercy toward a man like himself (omoion aut&) and yet pray for his own sins? If he himself, being flesh, maintains wrath (diathrei mhnin), who will make expiation (ecilasetai) for his sins? Remember the end of your life, and cease from enmity (exqrainwn), remember destruction and death, and be true to the commandments. Remember the commandments, and do not be angry (mh mhnis^j) with your neighbor; remember the covenant of the Most High and overlook ignorance. Sirach 27:30-28:7
The temptation to see a reflection of Deuteronomy 32:25 ("Vengeance is mine") in Sirach's condemnation of the "one who takes vengeance" above (28:1) is appealing,156 but Leviticus 19:18 seems more likely to be informing Sirach at this point. Although the lacuna in the Hebrew text from Sirach 26:13 through 30:10 makes the connections between this passage (27:30-28:7) and Leviticus 19:18 difficult to establish, they are present. A comparison of the Greek text of Leviticus 19:18 with Sirach 27:30; 28:1, 3, 5, and 7 reveals the allusive connections between the two passages.
Leviticus 19:18 LXX begins, "And your hand shall not exact vengeance (kai ouk ekdiketai sou h xeir)." Sirach
prefaces his instruction to "forgive your neighbor" (28:2)
So Peters, p. 228.