Ephesians 1-12 shows that those who first believed were predestined. They are the apostles.
Then in John 17 we see that in Jesus' prayer for the Apostles, those the Father gives to the Son were the apostles.
In John 6:37 All that the Father gives Me will come to Me, and the one who comes to Me I will by no means cast out. 38 For I have come down from heaven, not to do My own will, but the will of Him who sent Me. 39 This is the will of the Father who sent Me, that of all He has given Me I should lose nothing, but should raise it up at the last day."
Another misused verse is in John 10. Here again it is the Father giving to the Son, thus referring to the Apostles.
John 20:28 And I give them eternal life, and they shall never perish; neither shall anyone snatch them out of My hand. 29 My Father, who has given them to Me, is greater than all; and no one is able to snatch them out of My Father’s hand.
We are those who believed their words, but not predestined as the Apostles were.