Genesis 7:2-8

2You are to take with you seven pairs of1 every kind of clean animal, a male and its mate; a pair of every kind of unclean animal, a male and its mate; 3and seven pairs of every kind of bird of the air, male and female, to preserve their offspring on the face of all the earth. 4For seven days from now I will send rain on the earth for forty days and forty nights, and I will wipe from the face of the earth every living thing I have made.”

5And Noah did all that the LORD had commanded him.

6Now Noah was 600 years old when the floodwaters came upon the earth. 7And Noah and his wife, with his sons and their wives, entered the ark to escape the waters of the flood. 8The clean and unclean animals, the birds, and everything that crawls along the ground