Genesis 7:1-5

From J, but touched by the redactor in Genesis 7:3 a. J's account of the command to build the ark and its fulfilment has been omitted in favour of P's. J recognises the distinction between clean and unclean, which P regards as introduced by Moses; the same is true of the sacrificial system. A week is allowed for bringing in the animals. Whether seven or seven pairs of the clean animals were taken in is disputed; probably the latter. Unless Genesis 7:3 a is struck out as a gloss, we must follow the LXX, which gives the same directions for birds as Genesis 7:2 gives for animals.