Hashem gave us so many things to test us on how we utilize them. He gives us a mouth. The purpose of the mouth may be to eat, but there are more important purposes for it...
“Pihah paschah v’chachmah v’Soras chesed al lishonah — She opens her mouth with wisdom, and the Torah of kindness is on her tongue” (Mishlai 31:26). Wisdom and kindness are what the mouth is for. — Asking Hashem