In Gesammelte Aufsátze zur Religionssoziologie of Max Weber two unique theses are found : (1) Protestants' solicitude caused by the predestination, (2) the auditory prophecy of ancient Judaism. Through reexamining Weber's biography, this paper discusses (1) what enabled Weber to understand Protestants' mind ? (2) why the voice of God predominates over visual images in his interpretation ? Our review of his works from his personal life-history implies (1) the obsessed efforts as an heir of the Webers helped him understand the protestants' mind towards Beruf, (2) his identification with the ancient prophets made him discover an Occidental way of subjectivity called by the superior Subject. Sublimating his personal problems in his life-history to academic works, Weber could describe  the end and  the origin of the genealogy of the Occidental subjectivity in the two theses.