[Force of Truth]

So without God, what is good? Depends on what the definition of is is, I guess.

[denydenydeny]

So without God, what is good?

This was a big issue for C.S. Lewis, who maintained that without some kind of awareness of a higher goodness or justice, we could have no understanding of the concepts of "goodness" or "justice", any more than a fish could know that it's wet.

[Marie2]

Muslims think killing Jews is good. They think they’re doing the world a favor.

Good is a relative concept apart from the word of God.