The king of Babylon was one whom was at one time highly esteemed, whom God empowered, but his pride and vanity brought him down. Within the Bible the character most concurrent to him is either Nebuchadnezzar or an unnamed Babylonian king in time of Isaiah as it is Isaiah was instructed to take up the proverb against him.
Genesis 10 is a basic outline of the post-Flood geneology. The Table of Nations describing the genesis of the post-Flood races and nations that arose out of Shem, Ham, and Japheth. Genesis 11 shows us the Tower of Babel incident which would have happened sometime between Noah and Abraham. Genesis 11 concludes with the geneology from Noah to Abraham.
What that has to do with it is it shows clearly Nimrod did not commission the building of the tower of Babel, but rather was a collective effort of
the people. That may have included Nimrod, but it is also then possible Nimrod wasn't even born as it is implied he's the youngest son of Cush.
Aye I'd agree, the Lord is merciful, but remember, that is only as long as the earth remaineth, and the earth and heaven will perish one day by fire (2 Peter 3). The people did defy God's command to spread out, but God did not destroy them or smite them as he did Sodom and Gomorrah or Egypt, but merely confounded their languages that they might not understand each other. In fact I think this a blessing rather than a curse as we know God is not the author of confusion and we know that diversity of tongues is a gift according to Paul.
Yes David sinned having Uriah the Hittite's innocent blood shed. David was punished though for it though, his own family and friends turned on him. David is one of the greatest mortal kings ever in all history, even up to today, and I believe he was a good man. Again note the Lord is merciful and through Bathsheba came Solomon and through Solomon we get Jesus.
Lol again on paneh, in the specific usage of it here it is meaning in estimation of or in the sight of according to your own link.
Here it is again, I'll even bold it and underline the specific meaning for this verse for you so that it is easier to read
in the sight of the forum.
(g) in the sight (estimation) of,
Genesis 7:1 thee have I seen to be just
before me,
Genesis 10:9 a mighty hunter before ׳י,