1 Paul, an apostle of Jesus Christ by the will of God, to the saints which are at Ephesus, and to the faithful in Christ Jesus:
2 Grace be to you, and peace, from God our Father, and from the Lord Jesus Christ.
3 Blessed be the God and Father of our Lord Jesus Christ, who hath blessed us with all spiritual blessings in heavenly places in Christ:
4 According as he hath chosen us in him before the foundation of the world, that we should be holy and without blame before him in love:
This ‘foundation of the world’ is
Katabole
is a Greek noun1that can mean21: https://www.bing.com/search?q=greek+word+katabole&form=MSNSB1&refig=e612c779c93e427e9a2e0a5c83fafcd7&mkt=en-us&sp=2&lq=0&qs=UT&pq=greek+word+kat&sk=MT1&sc=10-14&cvid=e612c779c93e427e9a2e0a5c83fafcd7
A throwing or laying down
The injection or depositing of the virile semen in the womb of the seed of plants and animals
A founding (laying down a foundation)
The word “kataballo” is formed from two words: the preposition “kata” joined to the verb “ballo”3. The preposition “kata” is used with two cases. When used with the genitive case, then it denotes vertical downward motion, the opposite of “ana” which refers to vertical upward motion3.
It is referencing the casting down/overthrow of Lucifer ... Those children in the spirit bodies that stayed loyal to the Heavenly Father are the ‘saints’/chosen since the flesh age began.
Are you posting that in defense of a predestination belief?
If so, my response would be, it was the plan of salvation that was predestined before the foundation of the world, not the individual (1’st Peter 19-20). Because each of us are born and created with free will.
Unless I misunderstood your post?