How to amend older Git commit?

You have made 3 git commits, but have not been pushed. How can you amend the older one (ddc6859af44) and (47175e84c) which is not the most recent one?

$git log
commit f4074f289b8a49250b15a4f25ca4b46017454781
Date:   Tue Jan 10 10:57:27 2012 -0800

commit ddc6859af448b8fd2e86dd0437c47b6014380a7f
Date:   Mon Jan 9 16:29:30 2012 -0800

commit 47175e84c2cb7e47520f7dde824718eae3624550
Date:   Mon Jan 9 13:13:22 2012 -0800

git rebase -i HEAD^^^

Now mark the ones you want to amend with edit or e (replace pick). Now save and exit.

Now make your changes, then:

git add -A
git commit --amend --no-edit
git rebase --continue

If you want to add an extra delete remove the options from the commit command. If you want to adjust the message, omit just the --no-edit option.