Shakespeare Challenge -Othello/Jealousy

Put out the light, and then put out the light:
If I quench thee, thou flaming minister,
I can again thy former light restore,
Should I repent me:--but once put out thy light,
Thou cunning'st pattern of excelling nature,
I know not where is that Promethean heat
That can thy light relume.

Othello, Act 5, Scene 2