Yet Abraham was not always guiltless of deception. This point is made to show to what lengths translators have gone to preserve the unity and harmony of the Scriptures. They are right in doing so. Many words are translated in different ways when the translator thinks the unity and harmony of the Bible demand it. In a prescientific age it would be natural to name drinks from their principal ingredient, regardless of their alcoholic content or lack of it.
Gentry makes a point of the fact that the phrase yayin ki yith'addam is used only once in Scripture.
He implies that because it is used only once the prohibition connected with it may be safely ignored. He thus appears to be telling God how to teach. God only needs to command once, and after that one command is given, He expects to be obeyed. An officer in modern warfare may make one rule, perhaps by prohibiting something, and then go on to something else and finally close his instruction without repeating the prohibition. One under his authority cannot disobey the order and then try to shift the blame to his superior saying, he only said it once.