'Look not back behind thee,' as in Genesis 19:17, means that Lot, who represents the good of charity, should not look to matters of doctrine. 'To look up,' is to look to celestial things. In Genesis 18:22, looking signifies thinking because seeing denotes understanding.

(References: Arcana Coelestia 2245)

3. Without such life the Word as regards the letter is dead, for it is the same with the Word as it is with man, who, as the Christian world knows, is internal as well as external. The external man if parted from the internal man is just a body and therefore dead. It is the internal man which lives and imparts life to the external. The internal man is the soul of the external man. The same applies to the Word which as to the letter alone is like the body without a soul.