新あたらしい酒さけは古ふるい革かわ袋ぶくろに入いれる

expression

put new wine into old wineskins; put new wine into old bottles

A biblical idiom meaning to force new ideas or things into old frameworks. Often used metaphorically to criticize anachronistic approaches.

• その改かい革かく案あんは、新あたらしい酒さけを古ふるい革かわ袋ぶくろに入いれるようなものだ。

  That reform plan is like putting new wine into old wineskins.