Torah study is the study of the Torah, Hebrew Bible, Talmud, responsa, rabbinic literature and similar works, all of which are Judaism's religious texts. According to Rabbinic Judaism, the study is ideally done for the purpose of the mitzvah ("commandment") of Torah study itself. This practice is present to an extent in all religious branches of Judaism and is considered of paramount importance among religious Jews. Torah study has evolved over the generations, as lifestyles changed and also as new texts were written.