Great. Back on track.
How could you know/discern in your god was lying?
OK, to start with let's agree that wherever we get our moral values from we both recognise good from bad, and we would have the same understanding of those terms.
We also understand "love" in the same way as each other.
So when we are told by God to love one another and to do to others as we would have done to us, you and I both recognise that there are no negative connotations in those commands.
God also asks us to love Him. As we believe that we are not the result of a series of happy but accidental mutations living on a rock that appeared from nowhere, from nothing, with no catalyst, we tend to favour the existence of the God whom we believe gives us life. And as this same God commands us to love and respect each other it seems valid that we should at the very least include Him in that love.
I'm ignoring everything to do with the incarnation and its reasons for now.
So now we have to decide whether God is lying to us. To do that we have to examine potential motives and potential alternatives and their motives.
Firstly, is good better than evil? We will no doubt agree that in our shared understanding, good is preferable. So getting us to understand that good is better than evil, and to practice good alone, must in itself be a good thing.
Loving and respecting each other seems to me to have no possible evil connotation. In a previous post you said,
"Have you never seen a movie (or real life situation) in which the bad guy, leading everybody to believe everything he's doing is for good, actually served some nefarious means but NOBODY KNEW UNTIL AFTER THE FACT?
I mean, pick something on the opposing side of whatever political view you hold and you've got tons of examples, just to start".
The problem is you're comparing the motives of men dealing with men with the motives of God dealing with men. For the sake of this discussion you've assumed that God exists and I presume is all powerful. There would be no need for God to lie to us when He could achieve anything with a command, and to believe that He's tricking us into being what you and I know is the right thing would seem pointless.
OK, you may say He's playing a game. While we don't know of God's motivation for creation itself, it still seems massively unlikely that our doing good will have an evil outcome. I guess you'd have to give me an example of how you think and omnipotent, omniscient being could fool us into unwittingly producing evil by being good before I could argue the point, because I can't think of one.
If, however, God was to tell me (somehow?) that my killing my children was a command for "good", I would refuse and stop worshipping that God, because it is out of character for the God I believe I know and who has been revealed in scripture, in creation, and in my understanding.
So like you, I use discernment, my own judgement to see right from wrong, and as our judgement on such matters is likely to be the same, I feel it likely that this whole question is hypothetical insofar as I'm sure you don't believe that God, if He exists for you, is evil any more than I do. And as you don't even believe He exists, all the more hypothetical.