You can see the difference between the nations, the types; it is bought out here. ‘And the boys grew: and Esau was a cunning hunter’ – ‘Esau knowing hunting’, says the original.
We may find a natural attractiveness in those who belong to the world, a quick wittedness, a sense of humour or an intelligent mind. But if these things are allowed to make us prefer them over those who belong to Christ, who though they be less bright, have integrity and love the truth, then we choose our friends for the wrong reason.