Genesis 32:4

From this point Jacob sent messengers forward to his brother Esau, to make known his return in such a style of humility ("thy servant," "my lord") as was adapted to conciliate him. אחר (Gen 32:5) is the first pers. imperf. Kal for אאחר, from אחר to delay, to pass a time; cf. Pro 8:17, and Ges. 68, 2. The statement that Esau was already in the land of Seir (Gen 32:4), or, as it is afterwards called, the field of Edom, is not at variance with Gen 36:6, and may be very naturally explained on the supposition, that with the increase of his family and possessions, he severed himself more and more from his father's house, becoming increasingly convinced, as time went on, that he could hope for no change in the blessings pronounced by his father upon Jacob and himself, which excluded him from the inheritance of the promise, viz., the future possession of Canaan. Now, even if his malicious feelings towards Jacob had gradually softened down, he had probably never said anything to his parents on the subject, so that Rebekah had been unable to fulfil her promise (Gen 27:45); and Jacob, being quite uncertain as to his brother's state of mind, was thrown into the greatest alarm and anxiety by the report of the messengers, that Esau was coming to meet him with 400 men. The simplest explanation of the fact that Esau should have had so many men about him as a standing army, is that given by Delitzsch; namely, that he had to subjugate the Horite population in Seir, for which purpose he might easily have formed such an army, partly from the Canaanitish and Ishmaelitish relations of his wives, and partly from his own servants. His reason for going to meet Jacob with such a company may have been, either to show how mighty a prince he was, or with the intention of making his brother sensible…

We have here Jacob still upon his journey towards Canaan. Never did so many memorable things occur in any march as in this of Jacob's little family. By the way he meets, I. With good tidings from his God (Gen 32:1, Gen 32:2). II. With bad tidings from his brother, to whom he sent a message to notify his return (Gen 32:3-6). In his distress, 1. He divides his company (Gen 32:7, Gen 32:8). 2. He makes his prayer to God (Gen 32:9-12). 3. He sends a present to his brother (Gen 32:13-23). 4. He wrestles with the angel (Gen 32:24-32).