2 Samuel 21:17
"But Abishai the son of Zeruiah succoured him, and smote the Philistine, and killed him. Then the men of David sware unto him, saying, Thou shalt go no more out with us to battle, that thou quench not the light of Israel."
Cross References (ranked by relevance)
And unto his son will I give one tribe, that David my servant may have a light alway before me in Jerusalem, the city which I have chosen me to put my name there.
But the people answered, Thou shalt not go forth: for if we flee away, they will not care for us; neither if half of us die, will they care for us: but now thou art worth ten thousand of us: therefore now it is better that thou succour us out of the city.
Nevertheless for David’s sake did the LORD his God give him a lamp in Jerusalem, to set up his son after him, and to establish Jerusalem:
There will I make the horn of David to bud: I have ordained a lamp for mine anointed.
It is he that giveth salvation unto kings: who delivereth David his servant from the hurtful sword.
And, behold, the whole family is risen against thine handmaid, and they said, Deliver him that smote his brother, that we may kill him, for the life of his brother whom he slew; and we will destroy the heir also: and so they shall quench my coal which is left, and shall not leave to my husband neither name nor remainder upon the earth.
They prevented me in the day of my calamity: but the LORD was my stay.
God is our refuge and strength, a very present help in trouble.
He was a burning and a shining light: and ye were willing for a season to rejoice in his light.
For thou art my lamp, O LORD: and the LORD will lighten my darkness.