Hands in the Bible represent power, the force with which things are put into action. To be specific, they represent the power of spiritual good -- which is the love of others and serving others -- expressed through spiritual truth -- which is an understanding and knowledge of what it is to love and serve others. This is in contrast to the feet, which represent power on the natural level, and a “rod,” which represents the power of the hand passed down into external or natural ideas. In a few cases in the Bible, hands also represent communication and a drawing together. This is true when people lift their hands to heaven or to Jehovah, and also when the Lord touches children or touches people to heal them.

4009. 'And he gave them into the hand of his sons' means that they were given to truths. This is clear from the meaning of 'sons' as truths, dealt with in 489, 491, 533, 2623, 3373. 'Giving into their hand' means giving them the right of control, for 'the hand' means power, 878, 3387. The truths which are meant by 'sons' in this case are those which are called sensory truths, for what the senses perceive as truths exist as the boundaries of the natural mind. For the natural degree of man's mind communicates on one side with sensory impressions which belong to the body and on the other side with the rational concepts which belong to the rational mind. By means of what lies in between a way of ascent so to speak is provided from sensory impressions which belong to the body, and are open in the direction of the world, up to the rational concepts which belong to the rational mind and are open in the direction of heaven. And in the same manner they provide a way of descent, that is to say, from heaven down to the world. This situation exists only with man. It is this ascent and descent that is dealt with in the internal sense of the chapters at this point in Genesis. And in order that every single thing may be expressed representatively, the rational is represented by Isaac and Rebekah, the natural by Jacob and both his wives, and the sensory awareness by the latters' sons. But since the sensory awareness as the ultimate degree of order incorporates everything prior to it each son represents something general in which those things are present, as shown above.