Psalm 139:16 Your eyes saw my substance, being yet unformed.
And in Your book they all were written,
The days fashioned for me,
When as yet there were none of them
Not sure why you posted this. It reminds me of this text:
“Before I formed you in the womb I knew you, and before you were born I consecrated you; - Jer. 1: 5
God knows the story of your life, knows what will happen because of your life, the decisions we will make, whether we are going to heaven or not before we see the light of day. But, he doesn't interfere with your free will from birth until death.
Acts 13:48 And when the Gentiles heard this, they were glad and glorified the word of the Lord. And as many as had been appointed to eternal life believed.
If you think you've found a statement that supports your Calvinistic view here , you may want to try somewhere else.
Here's the problems with what you're ( I think pushing).. If God foreordained people to be saved, then he foreordained others to be lost. That would make him a respecter of persons. He's not Acts10& Rom.2
What this verse is teaching is, God foreknew a plan in which if man (Jew and Gentile) submitted to it , he would be appointed to eternal life.
Only a certain type of person submits to this plan. One who humbly submits to his will.
Those who do not, are appointed to doom.
In the context of the verse, the Jews rejected this plans deciding their eternal destiny, while the Gentiles attitude was totally different upon hearing the gospel, decided their own destiny by believing the gospel.
John 17:9 "I pray for them. I do not pray for the world but for those whom You have given Me, for they are Yours.
This is the Apostles.
Romans 9:15 For He says to Moses, “I will have mercy on whomever I will have mercy, and I will have compassion on whomever I will have compassion.” 16 So then it is not of him who wills, nor of him who runs, but of God who shows mercy. 21 Does not the potter have power over the clay, from the same lump to make one vessel for honor and another for dishonor?
In saving lost men, God does not capriciously decide who or when or how each will be saved. Every alien sinner is subject to the same gospel and the same conditions of obedience to it. Each of us must make that decision, whether or not to be saved.
In bringing to maturity that he would bless all nations through the seed of Abraham, God followed the council of his own will. Paul isn't teaching that individuals have no choice in their salvation. He's teaching God made choices in selecting in the linage of Christ.