Arcana Coelestia # 3151
3151. 'Until I have spoken my words' means until it had received instruction. This is clear from the meaning of 'speaking words' as giving instruction. And what he was to say, which comes next in the narrative, also has to do with instruction. Divine things flow into those things that exist in the natural man, in the measure that instruction has been received and truth has arisen out of it, see above in 3141 (end).
Look
'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.
(Odkazy: Arcana Coelestia 2245)