command to work on the ark

13 After that God said to Noah: “The end of all flesh has come before me, because the earth is full of violence as a result of them; and here I am bringing them to ruin together with the earth. 14 Make for yourself an ark out of wood of a resinous tree. You will make compartments in the ark, and you must cover it inside and outside with tar. 15 And this is how you will make it: three hundred cubits the length of the ark, fifty cubits its width, and thirty cubits its height. 16 You will make a tso´har [roof; or, window] for the ark, and you will complete it to the extent of a cubit upward, and the entrance of the ark you will put in its side; you will make it with a lower [story], a second [story] and a third [story].
17 “And as for me, here I am bringing the deluge of waters upon the earth to bring to ruin all flesh in which the force of life is active from under the heavens. Everything that is in the earth will expire. 18 And I do establish my covenant with you; and you must go into the ark, you and your sons and your wife and your sons’ wives with you. 19 And of every living creature of every sort of flesh, two of each, you will bring into the ark to preserve them alive with you. Male and female they will be. 20 Of the flying creatures according to their kinds and of the domestic animals according to their kinds, of all moving animals of the ground according to their kinds, two of each will go in there to you to preserve them alive. 21 And as for you, take for yourself every sort of food that is eaten; and you must gather it to yourself, and it must serve as food for you and for them.”
22 And Noah proceeded to do according to all that God had commanded him. He did just so.