  Far less scholarly attention has been devoted to Leibniz's treatment of the holiness problem, if only because this conception of the problem has only recently been recognized by Leibniz scholars. As noted above, the main problem here is that God's character seems to be stained by evil because God causally contributes to the existence of everything in the world, and evil is one of those things. [For two recent treatments see Sleigh (1996) and Murray (2005)]