Yes, sorry, I just noticed that I had indeed accidentally deleted your post. I clicked "Edit" instead of "Reply". However I think the essence of your post was in the passages I quoted.

The problem with your approach is that you have a very fixed image of god that is incompatible to the bible. Of course, for any bible quote you're posting one could post 10 quotes that just tell the opposite. Out of context bible quotes won't gain much. If you want to understand the bible, you need to read what's happening and not just pick some quotes.

Read the dialogs between God and Moses. Moses often manages to change God's intentions:

And the LORD said unto Moses, How long will this people provoke me? and how long will it be ere they believe me, for all the signs which I have shewed among them? I will smite them with the pestilence, and disinherit them, and will make of thee a greater nation and mightier than they.

And Moses said unto the LORD, Then the Egyptians shall hear it , And they will tell it to the inhabitants of this land: (...) if thou shalt kill all this people as one man, then the nations which have heard the fame of thee will speak, saying, Because the LORD was not able to bring this people into the land which he sware unto them, therefore he hath slain them in the wilderness. (...)

God refrains from killing Israel after hearing Moses' arguments. Notice that Moses did not ask for mercy. He simply threatened god with bad reputation.

In the further events of the bible we'll see the Hebrew god changing from his initially aggressive and criminal character to the forgiving, merciful character that the New Testament propagates. God is tamed step by step, until he finally sacrificed himself to the humans. If you really want an immutable, unrepenting god, consider converting to Islam.