I am suggesting that God is powerful enough, that even within a constrained plan, we are still making genuine free-will choices. We are still free to obey or disobey. An example of this from the book is King David. In the Bible God said:
Your eyes saw my unformed substance; in your book all my days were recorded, even those which were purposed before they had come into being. How dear are your thoughts to me, O God! how great is the number of them! If I made up their number, it would be more than the grains of sand; when I am awake, I am still with you. (NKJV, Psalms 139:16-18)
So God had a plan for David, a positive one. But God gave David a secondary(and negative) plan when he sinned.
Then Nathan said to David, “You are the man! Thus says the LORD God of Israel: ‘I anointed you king over Israel, and I delivered you from the hand of Saul. I gave you your master’s house and your master’s wives into your keeping, and gave you the house of Israel and Judah. And if that had been too little, I also would have given you much more! Why have you despised the commandment of the LORD, to do evil in His sight? You have killed Uriah the Hittite with the sword; you have taken his wife to be your wife, and have killed him with the sword of the people of Ammon. Now therefore, the sword shall never depart from your house, because you have despised Me, and have taken the wife of Uriah the Hittite to be your wife.’ Thus says the LORD: ‘Behold, I will raise up adversity against you from your own house; and I will take your wives before your eyes and give them to your neighbor, and he shall lie with your wives in the sight of this sun. For you did it secretly, but I will do this thing before all Israel, before the sun.’ (2 Samuel 12:7-12)
You could take it even further, but I did not, and suggest David was not even God's first choice Saul was.
And Samuel said to Saul, “You have done foolishly. You have not kept the commandment of the LORD your God, which He commanded you. For now the LORD would have established your kingdom over Israel forever. (NKJV, 1 Samuel 13:13) ... And Samuel went no more to see Saul until the day of his death. Nevertheless Samuel mourned for Saul, and the LORD regretted that He had made Saul king over Israel. (NKJV, 1 Samuel 15:35)
The plan like I say just prevents things from getting chaotic. So God can truly say:
No temptation has overtaken you except such as is common to man; but God is faithful, who will not allow you to be tempted beyond what you are able, but with the temptation will also make the way of escape, that you may be able to bear it. (NKJV, 1 Corinthians 10:13)
Well done. There is what seems like an unending source of Scripture that could be used to prove humanity possesses true free will. As I have scoured the Bible multiple times in multiple translations, to find information dealing with free will, I also see all of the passages that could be used to prove that it exists. With your writing a book, I'm sure that you understand.
When it comes to having a legitimate view of free will, it comes down to the amount of support the source will provide. In our case, we have the Bible, with minor support added from extra-Biblical sources if desired. But when it comes to God controlling people, places, and things . . . it's as obvious as the color red. When people do not acknowledge the unending supply of Scripture that deals with the Power and control of God (over humans, animals, and the physical earth), I already know how the conversation is going to end. Their lack of knowledge and awareness of the Story of God cannot be hidden. I know how it is . . . I used to be one of them.
This is an incredibly important doctrine, for I assert that if a person [does not] acknowledge that surrendering their life to Christ will result in a changed life, they have accepted and baptized into a religion other than Christianity. They have received a false Gospel. If we want to know the actual Gospel Saving Plan of Jesus Christ, we must know the Covenant of Circumcision. If we want to get to the bottom of free will, we must know the Covenant of Circumcision. But, because the modern-day "church" does not teach Spiritual Circumcision in the sense that God wants it to be known, we, the "flock," haven't a clue as to what it is. But those who have dedicated years to studying this core doctrine of the Bible, have the advantage of Understanding, Knowledge, and Wisdom.
Also, if we would wake up and realize that Paul has told us that the Plan of God has been kept a hidden Mystery from the beginning, we would launch a full-scale investigation as to what he is talking about. What would that entail? Scouring the Bible, Word for Holy Word, Thought for Holy Thought, Phrase by Holy Phrase . . . looking for anything and everything that would help to understand what, exactly, he was talking about.
Ephesians 1 and 3. Absolutely essential, must-know Scripture.
As said, this is a great topic, but I am afraid that those who believe in it (complete free will) have been given a false gospel, and it is the basis for the modern-day church. Having a gospel plan that puts you in control . . . that's a false gospel. This is not to be mean . . . in no way. I say that because I once believed I had free will. I thought I was responsible for the sin in my life . . . but it was the Sinful Nature, not me. But I am saying that I am thankful that I have finally studied the entire Bible and can easily conclude that we are either controlled by God or the Devil . . . never at the same time, nor does their Fatherhood overlap . . . ever. All of creation is under the Curse of the Lord, thus we are born under the Spiritual Fatherhood of Satan and are Redeemed of that Fatherhood by the Circumcision of Christ.
This Promise of Spiritual Circumcision to the Jews below is the same Promise given to the future Gentiles who will be grafted in, for Gentiles are Elected and Saved by God just as are the Blessed Jews.
Ezekiel 36:25-27 NLT - 25 "Then I will sprinkle clean water on you, and you will be clean. Your filth will be washed away, and you will no longer worship idols. 26 And I will give you a new heart, and I will put a new spirit in you. I will take out your stony, stubborn heart and give you a tender, responsive heart. 27 And I will put my Spirit in you so that you will follow my decrees and be careful to obey my regulations."
If Christians do not identify with these three unbelievable Verses above . . . yikes.