And the firstborn of Egypt had done something wrong? Not, of course, that ANYONE had done anything punishable, given that god forces Pharaoh to hold out until he has an excuse for the slaughter.
Yet he had given Pharoah several chances to let the people of Israel go, before getting to this final stage. Pharoah had chosen not to.
Why do they need to seek forgiveness for not having done anything wrong?
Read my post again; I didn't said that they had to.
1. Nothing has established these people had done anything wrong.
2. Even if some of them had, there is no way the children of Sodom and Gomorrah, the firstborn of Egypt or every child on the planet that wasn't the son of Noah had perpetrated sufficient crimes to warrant punishment
3. What crime justifies capital punishment by drowning?
O, I should have pointed out that, since the Flood story occurs within the first 11 chapters of Genesis, it is a theological treatment, not a historical account. My apologies, though I would hope that most people here would have been aware of this undertanding in view of the various occasions I've pointed it out.
Regarding Sodom and Gomorrah, they are considered to be pretty horrendous places even outside of the Biblical record, so I suspect that there are things that we have little of no knowledge about now.
Egypt: If one thinks about punishment, it only really works when it impacts on something that the person being punished holds dear. In the Ancient Middle East, the first-born was probably the most important thing for a family. There had been a steadily escalating degree of punishment for every time that Pharoah, as the representative of his nation, refused to release the Jews. Sometimes he would agree, only to retract his agreement; sometimes, he simply refused. In the particular circumstances, it was the norm that the nation shared the 'punishment' suffered by a defeated leader.
I think you will agree that parents who are worth their salt do the same, applying any ultimate punishment only if a child refuses to apologise/admit to something that they are clearly guilty of/etc.
Really? I think, increasingly, people realise that there is less and less need for 'punishment' in any real sense, clearly expressing disappointment and reinforcing good behaviour is far more effective.
Can't say that I've noticed this, let alone ever reading any evidence to support this idea. Reinforcing good behaviour only works when it goes hand in hand with allowing a child to experience the consequences of their wrong-doing.
How much better is the behaviour of dead people after that level of sanction?
I didn't realise that Pharoah, for instance, died with his first-born.