I think of Romans 8:29 >
"For whom He foreknew, He also predestined to be conformed to the image of His Son, that He may be the firstborn among many brethren." (Romans 8:29)
God knew ahead of time who would be saved.
And God destined, then, that we will be changed into the image of God's own Son Jesus. So, it is important to know what is predestined. We are not only going to "Heaven", but we are being transformed in our nature so we become like Jesus Himself.
This is why, I now consider, Jesus started the Sermon on the Mount with how to be . . . not only what to do or who we are, but how we need to become in our character.
God wants us to be the
"many brethren" of Jesus. So, God is about family.
But there are people who are not about personal loving in family caring and sharing. They can be mostly concerned about their own ideas and beliefs and practices which maybe they were capable of accepting while they were immature or not even Christians. And ones of these believe in free will while others believe in predestination. And, either way, it can be an ego thing > wanting my own control of my choices and mainly being concerned about getting my own self to Heaven, or wanting to have status over those not predestined and, again, mainly caring about what happens to me and to ones who are my favorite people.
But Jesus has us caring about any and all people >
"if you love those who love you, what reward have you?" (in Matthew 5:46)
So, in case a person is holding to free will or to predestination, but with limited love, either way is wrong.
But if we truly trust in Jesus, do we desire to hold on to our own egos and choice making? If I give myself to God, I trust Him with my will and my heart, for how He is able to conform me to Jesus and personally guide me
"continually" (Isaiah 58:11).
"for it is God who works in you both to will and to do for His good pleasure." (Philippians 2:13)
"But he who is joined to the Lord is one spirit with Him." (1 Corinthians 6:17)
In Christianity we become
"one spirit with" God in His own love. This is so better than how I have been supposedly free in my own will in sin. In sin I was dead (Ephesians 2:1-3) and a slave of Satan. That was not good. My will was not free!!
"But God be thanked that though you were slaves of sin, yet you obeyed from the heart that form of doctrine to which you were delivered." (Romans 6:17)
So, the thanks . . . the credit . . . is to God, that we have obeyed. Our hearts in sin were not by nature obedient. But thanks be to God, that He changed our nature so we obeyed.
But there are people who boast their own selves as being able to choose what is good. But only God is good, Jesus says. Matthew 19:17 Mark 10:18 Luke 18:19 Only God is able to make really good choices.
"And let the peace of God rule in your hearts, to which also you were called in one body; and be thankful." (Colossians 3:15)
We are
"called in one body" to submit to how our Heavenly Father rules us in our
"hearts" with His very own peace. If you are ruled by something or someone, this is all the time. Our Heavenly Father so cares for us, that He desires to personally rule every one of us . . .
"in one body" . . . in His very own peace. This is how caring God is, and willing to share His very own self and peace with each of us, all the time.
So, how many people in our own free wills have chosen this?
Also, I do not think we are capable of keeping our own selves willing at each moment to obey how God is ruling us in His peace. We need Him to change us so He has us so submitting, all the time > consider, by the way, Colossians 1:28-29 < Paul knows the objective of submitting to God, and he knows he needs to work according to how God in Him works him to meet this objective. How many of us in our own wills have been busy with choosing and seeking to minister us all into becoming
"perfect in Christ Jesus" (Colossians 1:28-29)?
Also . . . if we are ruled
"in one body", our Father is always personally guiding us in keeping with all He knows and has going on in all the
"one body" of Christ. There is no way we can ourselves know and keep track of all this and get ourselves to will to do at each moment what is in coordination with all the
"one body" of Jesus. It can't be done
But > God does want us to relate with each other in love, so we respect what one another makes for choices. We are not to force or trick or bribe or charm people, but prayerfully encourage one another to all which is good (Ephesians 4:1-3, Ephesians 4:13-16

And trust God to produce His result.