'Ought' in the Bible

Then Abimelech called Abraham, and said unto him, What hast thou done unto us? And wherein have I sinned against thee, that thou hast brought on me and on my kingdom a great sin? Thou hast done deeds unto me that ought not to be done.

And the sons of Jacob came in from the field when they heard it: and the men were grieved, and they were very wroth, because he had wrought folly in Israel in lying with Jacob's daughter; which thing ought not to be done.