Sirach 13:17
Ben Sira, Ecclesiasticus15 Every creature loves its like, and every person the neighbor. 16 All living beings associate with their own kind, and people stick close to those like themselves. 17 What does a wolf have in common with a lamb? No more has a sinner with the devout. 18 What peace is there between a hyena and a dog? And what peace between the rich and the poor? 19 Wild asses in the wilderness are the prey of lions; likewise the poor are feeding grounds for the rich.
Matthew 10:16
14 And if anyone will not welcome you or listen to your message, shake the dust off your feet as you leave that house or that town. 15 I tell you the truth, it will be more bearable for the region of Sodom and Gomorrah on the day of judgment than for that town! 16 “I am sending you out like sheep surrounded by wolves, so be wise as serpents and innocent as doves. 17 Beware of people, because they will hand you over to councils and flog you in their synagogues. 18 And you will be brought before governors and kings because of me, as a witness to them and to the Gentiles.
Notes and References
"... There are some intriguing features about Matthew’s use of Sirach: Most of these parallels are unique to Matthew among the gospels. Included here are the structuring of the beatitudes (5:3–12), the makarism concerning those who mourn (5:4), the antithesis against adultery (5:27–28), the warning against prayers that use empty phrases (6:7), warnings against laying up treasure on earth (6:19–24), advice about judging good from bad fruit (7:16), the allusions to Elijah (11:14) and (17:11), Jesus’ teaching concerning the heavy yoke (11:28–30), the parable of the treasure hidden in the field (13:44), the warning that the son of man will repay grievances (16:27), and the separation of the sheep and goats (25:34–40). In other words, these texts and themes are singular to the Matthean mindset and thus are not typical of the remaining evangelists. (2) The vast majority of these usages are related to the topic of wisdom and instruction, a theme naturally derived from Sirach that clearly adds to Matthew’s standing as a gospel focused on teachings and contemplative sayings. But these lessons are not simply sapiential in orientation. In many cases they are associated with eschatological concerns, as with those parallels that appear (6:14), (6:20), (11:14), (16:27), #18 (17:11), and (25:34–40). Thus, regardless of whether Jesus of Nazareth was actually concerned for a futuristic eschatology, Matthew finds within the materials of Sirach a working source by which to portray his teachings as such ..."
Jefford, Clayton N. "The Wisdom of Sirach and the Glue of the Matthew–Didache Tradition" in Bingham, D. Jeffrey, editor. Intertextuality in the Second Century (pp. 8-23) Brill, 2016