Kálmán Kállay was born in in Bratislava. After finishing his theology studies, he worked as a religion teacher afterwards as a reformist priest in Romania. After the first world war, he organized holidays of the Hungarian children in Netherlands. At the University of Debrecen, he worked as the professor of the Old Testament reading and relat...ed studies from 1928 until his death. Within this time period, he was the Dean of the Faculty three times, and the Rector in 1941–42. He published numerous essays and books in relation of the Old Testament.