Arcana Coelestia #708
708. 'Jehovah said to Noah' means that it was so accomplished. This is clear from the fact that with Jehovah there is nothing other than Being (Esse). That which He 'says' denotes that which takes place and is accomplished, as also in verse 13 of the previous chapter, and elsewhere where 'Jehovah's saying' denotes taking place and accomplishment.
Leviticus 14:7-8
7
And he shall sprinkle upon him that is to be cleansed from the leprosy seven times, and shall pronounce him clean, and shall let the living bird loose into the open field.
8
And he that is to be cleansed shall wash his clothes, and shave off all his hair, and wash himself in water, that he may be clean: and after that he shall come into the camp, and shall tarry abroad out of his tent seven days.