Tell him the following points:
-
God doesn’t do “magic”, he does miracles e.g. turning water into wine, instantly, raising the dead, instantly, curing the lame, halt, blind etc, instantly,…
-
Idiots make lots of mistakes and take their time when they undertake a complex task. Evolution is a project which involves lots of errors (mutations) and must use eons of time to bring about what it eventually brings about.
-
Incompetent beings never get the job done, like mechanics who keep your car for months and return it as it was when you handed it to them. Just like God using evolution; he’s never finished creating.
-
Charlatans and liars say they have done something when in fact it was something else. Just like God using evolution: you can’t really distinguish between God really doing it and Nature doing it. (In fact, if you look at it objectively, you just don’t need God because Nature can do it all by itself, eventually.)
-
Tell him a God of love couldn’t and wouldn’t by necessity include death as a necessary creative element in his project. But a Godless Nature using evolution can and must.
Oops! Sorry, I’ve just argued your bother’s case.
Now, let me see, is there really any worthwhile argument explicitly saying just how Jesus, the God of miracles, could use evolution, an explanation in which his hand seems completely absent? Is there?