 As priest in Östra Husby parish, he was further influenced by the Pietism that had swept through that congregation 70 years earlier through the influence of revivalist author and preacher Carl Olof Rosenius.It is not as surprising as it might seem that Rosenius's influence was still felt; he had been a looming presence, for instance, in the household of artist David Wallin as he grew up in the same parish a generation earlier.Giertz, too, fell under his posthumous sway, to the extent that the Latin phrase "Verbum crucis Dei virtus" ("The message of the cross is the power of God", 1 Cor.