<SD>John 17
Jesus Prays for His Disciples
6 “I have manifested Your name to the men whom You have given Me out of the world. They were Yours, You gave them to Me, and they have kept Your word. 7 Now they have known that all things which You have given Me are from You. 8 For I have given to them the words which You have given Me; and they have received them, and have known surely that I came forth from You; and they have believed that You sent Me.
9 “I pray for them. I do not pray for the world but for those whom You have given Me, for they are Yours. 10 And all Mine are Yours, and Yours are Mine, and I am glorified in them.
11 Now I am no longer in the world, but these are in the world, and I come to You. Holy Father, keep through Your name those whom You have given Me, that they may be one as We are.
We are kept by the power of God through faith for salvation ready to be revealed in the last time. Every eye will see Him and he will gather up His elect, and all the world will witness His returning to rule and reign with His saints.
Jude 14-15 New King James Version (NKJV)
14 Now Enoch, the seventh from Adam, prophesied about these men also, saying, “Behold, the Lord comes with ten thousands of His saints, 15 to execute judgment on all, to convict all who are ungodly among them of all their ungodly deeds which they have committed in an ungodly way, and of all the harsh things which ungodly sinners have spoken against Him.”
Matthew 24:31
And He will send His angels with a great sound of a trumpet, and they will gather together His elect from the four winds, from one end of heaven to the other. (the four winds are the 4 corners of the earth and from all of heaven, all will join with Him at the resurrection of the just)<SD>
Expressio Unius Est Exclusio Alterius, the expression of one thing is the exclusion of the other.
Jesus said "I do not pray for the world but for those whom You have given Me, for they are Yours.""His angels ...will gather together His elect."
Jesus has identified a specific group, those who God gave Jesus, the elect. That necessarily excludes those who were not given to Jesus, who are not the elect.
If there was/will not be any difference I think Jesus would have said "I pray for the world<period> His angels will gather all mankind."
The elect cry out to Him and He saves them. Those of the world do not cry out to Him to be saved.
They are elect as they are chosen of God, He knew them and chose them as His own from before the foundation of the world.
Luke 18:6-8 New King James Version (NKJV)
6 Then the Lord said, “Hear what the unjust judge said.
7 And shall God not avenge His own elect who cry out day and night to Him, though He bears long with them?
8 I tell you that He will avenge them speedily. Nevertheless, when the Son of Man comes, will He really find faith on the earth?”
It is for the elect that Paul labors so they are saved, Paul knows only the elect of God will believe the message of the gospel, as does Peter, as they are the greatly beloved of God.
2 Timothy 2:10, Therefore I endure all things for the sake of the elect, that they also may obtain the salvation which is in Christ Jesus with eternal glory.
If it is for some to obtain salvation, then some do not obtain salvation, only the elect will be saved, and the rest remain blinded to the gospel, just as the sower parable shows, the seed falls on some that bear no fruit, but when it falls on the good soil, that shows the regenerated heart is the one that bears the good fruit as it believes the message and bears a fruitful crop, none of the others where the soil was bad bore the good fruit to God. And unless you bear good fruit to God, you can not be saved, Those who bear good fruit shows God is at work in them, their deeds are wrought in God. John 3:20-21.
Romans 11
5 Even so then, at this present time there is a remnant according to the election of grace. 6 And if by grace, then it is no longer of works; otherwise grace is no longer grace. But if it is of works, it is no longer grace; otherwise work is no longer work.
7 What then? Israel has not obtained what it seeks; but the elect have obtained it, and the rest were blinded. 8 Just as it is written:
“God has given them a spirit of stupor,
Eyes that they should not see
And ears that they should not hear,
To this very day.”