Matius 9:17

9:17 And no one pours new wine into old wineskins; ¹  otherwise the skins burst and the wine is spilled out and the skins are destroyed. Instead they put new wine into new wineskins ²  and both are preserved.”

Matius 3:7

3:7 But when he saw many Pharisees ³  and Sadducees ⁴  coming to his baptism, he said to them, “You offspring of vipers! Who warned you to flee from the coming wrath?

[9:17]  ¹ sn Wineskins were bags made of skin or leather, used for storing wine in NT times. As the new wine fermented and expanded, it would stretch the new wineskins. Putting new (unfermented) wine in old wineskins, which had already been stretched, would result in the bursting of the wineskins.

[9:17]  ² sn The meaning of the saying new wine into new wineskins is that the presence and teaching of Jesus was something new and signaled the passing of the old. It could not be confined within the old religion of Judaism, but involved the inauguration and consummation of the kingdom of God.

[3:7]  ³ sn Pharisees were members of one of the most important and influential religious and political parties of Judaism in the time of Jesus. There were more Pharisees than Sadducees (according to Josephus, Ant. 17.2.4 [17.42] there were more than 6,000 Pharisees at about this time). Pharisees differed with Sadducees on certain doctrines and patterns of behavior. The Pharisees were strict and zealous adherents to the laws of the OT and to numerous additional traditions such as angels and bodily resurrection.

[3:7]  ⁴ sn The Sadducees controlled the official political structures of Judaism at this time, being the majority members of the Sanhedrin. They were known as extremely strict on law and order issues (Josephus, J. W. 2.8.2 [2.119], 2.8.14 [2.164-166]; Ant. 13.5.9 [13.171-173], 13.10.6 [13.293-298], 18.1.2 [18.11], 18.1.4 [18.16-17], 20.9.1 [20.199]; Life 2 [10-11]). See also Matt 16:1-12; 22:23-34; Mark 12:18-27; Luke 20:27-38; Acts 5:17; 23:6-8.