The preface to John Calvin's Sermons on Deuteronomy says this:
For sufficient proofe whereof, and to the end it should not be thought that we do wrongfully & without cause giue inkling of the things afore said: we will briefly touch what hath bin doone herein a fewe yeares since: namely that there haue bin certaine men, who without any forecast, haue bin so bolde as to cause certain sermons vpon the Prophet Danyel to be printed, without vouchsafing to see the originall copie, or to be aduertised there of from hence. And to couer their whole doings the better, they alledge that their so doing was for the glorie of God. Yea marie: but that should haue beene done without the hinderance of other men.
I think I still have not understood clearly the meaning of this expression. Some say it is an expression of surprise, but I still couldn't get its meaning.
Also, it would be good to have some modern expressions with the same meaning.