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.
(Referencias: Arcana Coelestia 2245)
Matthew 5:14-16
14
You are the light of the world. A city located on a hill can't be hidden.
15
Neither do you light a lamp, and put it under a measuring basket, but on a stand; and it shines to all who are in the house.
16
Even so, let your light shine before men; that they may see your good works, and glorify your Father who is in heaven.
