Cast down imaginations

I typed "imagination" into my Bible App search box today, and many results came up (it's KJV). These scriptures are to reach my point. Feel free to browse your bible and find more. These are copied from my notes.

Evil Imaginations: Cast It Down
♦Genesis 6:5 KJV
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.
♦ Genesis 6:6 KJV
And it repented the Lord that he had made man on the earth, and it grieved him at his heart.
↪It displeases the Lord
♦ Genesis 8:21 KJV
And the Lord smelled a sweet savour; and the Lord said in his heart, I will not again curse the ground any more for man's sake; for the imagination of man's heart is evil from his youth; neither will I again smite any more every thing living, as I have done.
↪The imagination of man's heart is evil from youth, doesn't make it right to allow thoughts to enter.
♦ Deuteronomy 31:21 KJV
And it shall come to pass, when many evils and troubles are befallen them, that this song shall testify against them as a witness; for it shall not be forgotten out of the mouths of their seed: for I know their imagination which they go about, even now, before I have brought them into the land which I sware.
↪The Lord knows the imaginations of your heart...cast it down
♦ 1 Chronicles 28:9 KJV
And thou, Solomon my son, know thou the God of thy father, and serve him with a perfect heart and with a willing mind: for the Lord searcheth all hearts, and understandeth all the imaginations of the thoughts: if thou seek him, he will be found of thee; but if thou forsake him, he will cast thee off for ever.
♦ 2 Corinthians 10:3-5 KJV
For though we walk in the flesh, we do not war after the flesh: [4] (For the weapons of our warfare are not carnal, but mighty through God to the pulling down of strong holds;) [5] Casting down imaginations, and every high thing that exalteth itself against the knowledge of God, and bringing into captivity every thought to the obedience of Christ;