Arcana Coelestia # 3032
3032. 'Abraham said to him' means the Lord's perception coming from the Divine. This is clear from the meaning of 'saying' as perceiving, dealt with above in 3029, and from the representation of 'Abraham' as the Lord as regards the Divine Human, from which that perception came.
Eat
When we eat, our bodies break down the food and get from it both energy and materials for building and repairing the body. The process is similar on a symbolic level in the Bible. Food represents the desire for good and the insight that comes from that desire for good – goodness and understanding that come from the Lord. But to put them to use we have to take them in and make them our own – which is spiritual eating.