וְאִ֨ם־בְּאֵ֔לֶּה לֹ֥א תִוָּסְר֖וּ לִ֑י וַהֲלַכְתֶּ֥ם עִמִּ֖י קֶֽרִי׃
And if in spite of these things ye will not be corrected unto Me, but will walk contrary unto Me;
Rashi on Leviticus
לא תוסרו ליAND IF YOU WILL NOT BE CHASTISED — so that you should return unto Me.
Siftei Chakhamim
To return to Me. Because the expression לא תוסרו לי (lit. do not accept your sufferings) is problematical, as people obviously do not want to accept sufferings [and they sufferings are given to people whether they want them or not]. Therefore Rashi explains: If, despite all these sufferings, you do not want to return to Me.