Genesis 6:7

And the Lord said, I will destroy man whom I have created from the face of the earth; both man and beast and the creeping thing and the fowls of the air; for it repenteth Me that I have made them. The sentence of the Lord is comprehensive, referring to the entire sphere in which man is the head and chief. Man, whom He had created, He wanted to destroy utterly from the face of the earth. And the irrational beast that was created for man's service is also included in his destruction: mammals and reptiles and birds together. Thus the immutable God did not change, neither in His essence nor in His counsels; but He was obliged to apply His punitive justice on account of the change in man which challenged His wisdom, holiness, and righteousness.