The Bible clearly explains why God did what He did. These verses should have been included and highlighted in the article:
“The Lord saw that the wickedness of man was great on the earth, and that every intent of the thoughts of his heart was continually only evil. The Lord was sorry that He had made man on the earth, and it grieved Him in His heart.” (Genesis 6:5,6)
“The earth was corrupt before God and filled with violence. God looked on the earth and saw it was corrupt, for all flesh had corrupted their way on the earth. So God said to Noah, ‘The end of all flesh is come before Me, for the earth is filled with violence because of them. Now I will destroy them with the earth.’” (Genesis 6:11-13)
Minor side point: scripture almost never uses the phrase “purposes” of God (plural). It uses “purpose”, singular. Eph. 1:11, 3:11 for example. Man has many purposes, but it appears that God has only one.
Which raises the question to any thinking believer - if God has ONE purpose, what is it?
And how important is it that we know what it is?
And how important is it that we align our own purpose for being here with that purpose?