Why might the caste of Brahmans have been associated with there mouth?

The caste of Brahmans in Hinduism is traditionally associated with the mouth because of their ritualistic role as priests. They were believed to be responsible for transmitting sacred knowledge through reciting prayers, chanting mantras, and officiating ceremonies, all of which involved the use of the mouth. The mouth symbolizes their ability to communicate with the divine and uphold religious practices within the community.