What are we to make of this blessing? Isaac had previously protested that there was no blessing left with which he could bless Esau, since he had already unwittingly blessed Jacob instead. Yet now he finds something with which he can comfort Esau.
Some render the words in verse 39 in an unfavourable way, ‘Your dwelling shall be away from the earth’s richness, away from the dew of heaven above’ (Aalders), giving the opposite meaning to the standard interpretation. The thinking behind this is that only an unfavourable rendering is true to the historic facts, for Edom was ‘largely unproductive and lacking in moisture’ (Aalders p 99). The words Isaac uses are almost identical to the terms of the blessing given to Jacob, though the order is reversed, yet some try to make them mean the opposite – ‘away from’ instead of ‘from’. It is also said that the giving of blessings would not agree with what follows, ‘By thy sword wilt thou live’. But there is no necessary contradiction between living by the sword and being fed from the produce of the field. Hebrews says that Isaac blessed both the sons concerning things to come (Hebrews 11:20). Is the word ‘blessed’ used in opposite senses for each of the sons? Surely not.