The first of five prefaces to comprehension and realization of which will bring a person to complete trust in GD is 1. He should believe and clearly recognize that the seven qualities which, if united in the object of one's trust, make it possible to trust in him are united in GD pg 373 Daily Halacha The Torah commands that one give honor to any frum Jew man or woman over the age of seventy by rising to one's full height when the older person comes within four amos (6/8 feet) until the older person leaves the area of his four Amos. Regardless of how learned or great the person is, we recognize and pay tribute to him "because in his great number of years, he has seen and recognized a bit of the workings of Hashem and His wonders, and he is thus worthy of honor. It is not proper to just get up a little, one should rise fully in order to perform the mitzvah properly