The essence of morality in relation to language truth and understanding based on Heidegger's and Gadamer's point of view

In this research, the relationship between language, truth and morality in humans has been investigated. It has been shown that there are three presuppositions in moral schools: 1. The truth is considered as a correspondence theory of truth. 2. With this presupposition of truth, language is considered as a tool in which moral expressions will be propositions that are justifiable. 3. Man is a being with authority and will, so he is a moral being. Therefore, with these three presuppositions, these approaches have not been able to find a justification for the ethical or non-ethical behavior of humans and animals. As a result, by examining language and truth (truth as Alethia) from from Heidegger's pointof view, we are looking for the fundamental grounds of human morality, and we show that man is moral not because of his will but because he is dwelling in language and traditional. Finally, the following questions will be answered in this research: How can a rule in a tradition be turned into a norm or a moral judgment? Does anyone have the originality to make a deed moral or immoral? Is man a moral being because of his language? Therefore, the question arises: do animals behave ethically? In other words, can they be considered moral beings?