Charles Ellicott Commentary Leviticus 26:23

"And if by these things ye will not be reformed unto me, but will walk contrary unto me;" — Leviticus 26:23 (ASV)

And if you will not be reformed. —The fourth warning (Leviticus 26:23–26) threatens the rebellious Israelites with a more intensified form of the punishment partially mentioned in the first warning. (See Leviticus 26:17.)