So our friendly neighborhood missionary, Jacob, has declared with a simple “yes. God is perfectly just” agreement with the statement that “if God asks people to kill other people, that makes it a just killing because God decides what is just, and if he decides it is, then it is.”
This is a necessary statement for Jacob to make if he wants to deny that the God character in the Bible contradicts himself by first telling people not to unjustly kill in the commandments of Exodus, then telling people in Numbers (and a passel of other places in the Old Testament) to go and kill innocent children. If you’re going to claim, as Jacob the missionary does, that the Bible never contradicts itself, then you have to proclaim, as Jacob does, that the slaughter of innocent children is just.
Here’s a hypothetical question for those who agree with Jacob that anything God demands is just because God is God, and therefore by his status as God is just in his demands:
Suppose Satan in his full diabolical fashion overthrew God and became the new Supreme Ruler of the Universe. Just suppose that happened. If that happened, would you say that anything Satan demands is just because Satan demands it? Would you follow Satan’s commands because he was Satan, Lord of the Universe? Why or Why not?
If you would follow Satan, then doesn’t that make you simply a sheep, setting your morality on the basis of following whomever’s in control, even if the deity in charge is diabolically evil?
If you wouldn’t, then doesn’t that suppose you have some independent basis for deciding what is just other than following the example of whomever is in charge of the universe?