Keep certain messages within one's own family

This hadith is about how important it is to keep messages within family. The Prophet sent Abu Bakr with an announcement of Bara'ah which was a declaration to publicize the disavowal of idolaters. However, he later realized that only a man from his family should deliver this message and so called for 'Ali instead. This hadith teaches us that it is important to keep certain messages within our families and not share them with outsiders as they may not understand or appreciate them in the same way we do. It also shows us how much respect and importance the Prophet gave to his own family by entrusting them with such an important task.