'Punish' in the Bible

May God punish Abner and do so severely if I don’t do for David what the Lord swore to him:

Then they came to urge David to eat bread while it was still day, but David took an oath: “May God punish me and do so severely if I taste bread or anything else before sunset!”

Today I am weak, even though I am anointed as king. These men, the sons of Zeruiah, are too much for me to bear! May the Lord punish appropriately the one who has done this evil thing!"

I will be a father to him, and he will be a son for me, whom I will punish when he does wrong, with a rod of men and with blows of the {human beings}.

And tell Amasa, ‘Aren’t you my flesh and blood? May God punish me and do so severely if you don’t become commander of the army from now on instead of Joab!’”