Made a covenant with the people - i. e. he solemnly ratified and renewed the covenant of Sinai, as Moses had done before him Deuteronomy 29:1. As no new or different covenant was made, no sacrifices were necessary.
Related Commentaries of Joshua 24:25
Joshua 24:25
25 So Joshua made a covenant with the people that day, and set them a statute and an ordinance in Shechem.