Speak only good words

This hadith emphasizes the importance of controlling one's speech. It teaches us that if we truly believe in Allah and the Hereafter, then we should strive to only speak words that are beneficial and kind. We should avoid speaking ill of others or engaging in gossip as this is not pleasing to God. Furthermore, it is also important to know when it is best to remain silent rather than speaking out on a matter which may cause harm or discord among people. In this way, we can use our words for good instead of evil and bring peace into our lives as well as those around us.