Well, the bible isn't going to help much trying to answer that: the entity it portrays as god is sometimes vile, demonic, stupid, vindictive and violent; yet at other times seems to care for the well being of selected human beings, or at least claims to. The behavior is too erratic to conclude whether generally benevolent or generally malevolent. It's better to take an objective view, get up off the planet's surface where it can be viewed without being buffeted by its turmoil, and frame the question: IF there's a god, is it benevolent or malevolent? How could one tell? You could log the occasions of all the things that happen, wars, volcanoes, discoveries of cures for cancer, getting to work on time, having work, disease, birthday parties, finding a lover, losing a lover, tsunamis, nuclear reactor meltdowns, finding a restaurant that cooks your steak exactly right, landing on the moon, etc. etc. and pile them all into two columns, GOOD STUFF and BAD STUFF, then see if one column is clearly larger than the other. But you run into instant trouble with that exercise: what's GOOD STUFF for you could be BAD STUFF for someone else, and vice versa. You'd have to winnow the columns down, WAY down, to just things that were GOOD regardless of who was affected, and BAD regardless of who was affected, and you're STILL in trouble because you're in no position to make that kind of assessment. It's impossible to assign a value of GOOD or BAD to something without being subjective, because GOOD and BAD are themselves subjective terms. You can't look at it objectively. So if it can't be evaluated objectively, look at it subjectively. After all, what matters here is whether god is benevolent or malevolent insofar as how YOU'RE affected. If god is benevolent you should feel that benevolence pretty decisively, or if god is malevolent you feel that malevolence pretty decisively. So you should ask, am I so satisfied with how my life is going I can't complain? Ask that question, and the overwhelming response from the whole of mankind is: "Not so much. We've had to create a major institution called religion which devotes most of its energy begging god for something better". And how's that worked out, all that begging? Are you still begging? IF there's a god, it's more likely to be malevolent, in that we as a species find it necessary to ALTER NATURE to shape life into something better than what we have. Most of ALL of our energies, religious or non-religious, are directed toward taking ourselves out of where we are now to something better. Because IF there were a god that was benevolent, nature would be benevolent, wouldn't need changing, and we'd be generally much happier than we are, and not ceaselessly feeling that we're not as happy as we could be. IF there was a god.