An interesting thing about Exodus 21 is that it not only can used to justify stoning murderous Orcas to death (provided you see no difference between oxen and killer whales) but it can also be used to justify slavery. Consider how the chapter opens:
Exodus 21
1 “These are the laws you are to set before them:
Hebrew Servants
2 “If you buy a Hebrew servant, he is to serve you for six years. But in the seventh year, he shall go free, without paying anything.
3 If he comes alone, he is to go free alone; but if he has a wife when he comes, she is to go with him.
4 If his master gives him a wife and she bears him sons or daughters, the woman and her children shall belong to her master, and only the man shall go free.
5 “But if the servant declares, ‘I love my master and my wife and children and do not want to go free,’
6 then his master must take him before the judges. [a] He shall take him to the door or the doorpost and pierce his ear with an awl. Then he will be his servant for life.7 “If a man sells his daughter as a servant, she is not to go free as menservants do.
8 If she does not please the master who has selected her for himself, [b] he must let her be redeemed. He has no right to sell her to foreigners, because he has broken faith with her.
9 If he selects her for his son, he must grant her the rights of a daughter.
10 If he marries another woman, he must not deprive the first one of her food, clothing and marital rights.
11 If he does not provide her with these three things, she is to go free, without any payment of money.
Now, these rules might have been the best that Moses could do at the time. These rules may have been quite progressive in their time. But I think it’s silly to cite Exodus to argue that we should start stoning killer whales. Now, if you want to debate whether Jonah was swallowed by a fish or a whale…