If you truly believed the deity had given you a direct order to kill one of your children, or anyone else for that matter, would you obey?
You have chosen to ask a hypothetical question about a scenario that will never happen. God is not evil, and He will not ask me to do anything which is inherently evil - it is just not possible.
However, I have been asked to do something which I would never normally consider because I felt totally incapable - to lead the singing in a charismatic prayer group. In my youth I would attend the early morning Mass because I wanted to avoid the singing - I could not sing and I did not like to hear singing during Mass. When the opportunity arose to lead the singing in the prayer group I felt God prompting me to say "yes". Little did I know at the time that this decision would change my life - I discovered God's love for the first time, and I also met my future wife.
The deeds attributed to the deity featured in the Bible are evil!
I'm going to attempt to be a sort of moderate voice here, floo. In the early part of the Bible, the deeds of the deity certainly seem to be weighted down on the evil side. There are also deeds attributed to the deity which are good. Since all we know of these supposed 'deeds', and all we know of God's supposed 'goodness' are simply accounts written from the point of view of men (and some women), there is no reason to suppose that the deity is one thing or the other. Sometimes he appears good, sometimes bad. You cherry pick the bad, BA cherry picks the good - and in fact, since he rejects the whole of the Old Testament, he's halfway to your viewpoint in any case. And his view of the loving Jesus in the NT, though highly attractive, and supported by a fair number of scholars, in itself can only be upheld by strenuously rejecting various 'uncomfortable' texts, or explaining them away.
I wonder, is it possible to approach the Bible without some kind of emotional involvement, in the attitude of objective scholarship? I certainly had a very emotional attitude to it in the (distant) past, but now I try to see it as an interesting collection of ancient texts, some of which can still move me, but without feeling any compunction to
believe. I find the byways of scholarship about the Bible interesting, in the same way that some historians get enthused about the civilisations of the ancient Maya or the Hittites. But maybe I'm in a minority too.