Charles Ellicott Commentary Joshua 23:15

"And it shall come to pass, that as all the good things are come upon you of which Jehovah your God spake unto you, so will Jehovah bring upon you all the evil things, until he have destroyed you from off this good land which Jehovah your God hath given you." — Joshua 23:15 (ASV)

As all good things are come upon you ... so shall ... all evil things. — Compare Deuteronomy 8:19-20, Deuteronomy 30:17–18, and Deuteronomy 28 throughout.

The above exhortations concern matters that fall within the ruler's jurisdiction. The law will be forgotten if the magistrates will not enforce it. Marriages, treaties, and public worship are matters under the control of the law. What the rulers will not tolerate, the people will find it hard to maintain.