Did God have a change of plan or regrets about His own creation when He wiped out the entire earth's population during Noah's time?

Answer 1

No, one of the characteristics of God is that He is all knowing, so it is against His nature to have regrets, or change plans. In regards to The Bible Flood of Noah, spirit creatures who had forsaken their original home came down to the earth and mated with humans creating an evil race called Nephillium, God gave many warnings of the coming destruction, the only one who listened was Noah and his family. Another View Yes, according to the Bible, God gave man free will, and when he saw man's wickedness, he chose to destroy men and start over.

"And it came to pass, when men began to multiply on the face of the earth, and daughters were born unto them, That the sons of God saw the daughters of men that they were fair; and they took them wives of all which they chose. And the LORD said, My spirit shall not always strive with man, for that he also is flesh: yet his days shall be an hundred and twenty years. There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became mighty men which were of old, men of renown. And GOD saw that the wickedness of man was great in the earth, and that every imagination of the thoughts of his heart was only evil continually. And it repented the LORD that he had made man on the earth, and it grieved him at his heart. 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." -- Genesis 6:1-7 (KJV)

Another View

Many Christians believe that the Old Testament is more useful as a document that relates to the religious history of the Jews before God sent his son to die for our sins. If you read the Old Testament, there are many things in it that cause other disturbing questions about God. For instance, why would God sanction slavery (Exodus 21), condone murder for pagan belief, bestiality, or offering sacrifice to other Gods (Exodus 22). In Numbers 31:17, Moses commanded that after a battle victory all the boys and women who were not virgins be put to death while the virgins were kept as spoils. Likewise, why would God condemn homosexuality if it is related to genetics (Leviticus 18:22)? Another very disturbing verse comes in 2 Kings 2:23-24 when Elisha summons she-bears to maul children for making fun of his bald head.

Due to these examples (and many others), many modern Christians focus on the fact that Jesus swept away the Old Testament and brought about the new. The story of Noah is to many Christians simply an interesting story but not one that bears any significance to the nature of God.

Summary This is a disagreement among even Christian theologians. Some believe that God is infallible and thus blame the destruction on outside forces or a planned purging of evil men, while others believe that God gave man free will and thus he was punishing those who chose to act wickedly with their free will. Still others believe that the Old Testament is simply the religious writings of men who were doing their best to understand God's Will before his son came down to Earth and informed us properly. Ultimately, it is up to you to decide which view to embrace. This focuses on the validity of the Christian belief or Christian myth rather than on what the question focuses on: the relationship between this Christian scripture/story (or myth) and the nature of God:

Answer 2

These are possibilities if we believe the story of Noah's Flood to be literally true. But we now know that an even older and more primitive myth, found in the Epic of Gilgamesh, talks of a flood story that is remarkably similar to the biblical story of Noah.
And so, we have an alternative source for the story of Noah's Flood. Believers will say that the Flood must have happened just a few thousand years ago, covering the entire world under an impossible volume of water. Others will say that Noah's Flood is just a late retelling of Utnapishtim's Flood, from the Epic of Gilgamesh. And since no modern believer says that we must believe the holy scriptures of Gilgamesh, then neither Utnapishtim's Flood nor Noah's Flood really happened. There was no change of plan, because there was no Flood.

Answer 3

Yes, through Noah, He would begin the next stage of the 'reign of man'

Genesis 6:5-8New King James Version (NKJV)5 Then the Lord saw that the wickedness of man was great in the earth, and that every intent of the thoughts of his heart wasonly evil continually. 6 And the Lord was sorry that He had made man on the earth, and He was grieved in His heart. 7 So the Lord said, “I will destroy man whom I have created from the face of the earth, both man and beast, creeping thing and birds of the air, for I am sorry that I have made them.†8 But Noah found grace in the eyes of the Lord.