It is important to read these in context. I have shown many people wrong on their claims of what scripture says by putting it in context. It is also important to ignore chapters for anything except navigation, because that is their only purpose--they were not in the original.
John 9 & 10
The idea of this part wasn't that some of us aren't his sheep. The idea was that if we are his sheep, we listen to him, and a good shepherd will protect his sheep, but no one else will. It is important to note that his audience was the Pharisees.
I think Christ was saying the Pharisees are a hired hand, so they don't actually care for the sheep.
Christ also said that there are other sheep, and that they need to be gathered.
In that context, it has nothing to do with the elect, rather to do with those who follow Christ following Christ. Who are Christ's sheep? Perhaps they are those who bear good fruit. It isn't that other sheep are not permitted to follow; rather, they choose not to follow.
John 15 to 17
18 “If the world hates you, keep in mind that it hated me first. 19 If you belonged to the world, it would love you as its own. As it is, you do not belong to the world, but I have chosen you out of the world. That is why the world hates you. 20 Remember what I told you: ‘A servant is not greater than his master.’ If they persecuted me, they will persecute you also. If they obeyed my teaching, they will obey yours also. 21 They will treat you this way because of my name, for they do not know the one who sent me. 22 If I had not come and spoken to them, they would not be guilty of sin; but now they have no excuse for their sin. 23 Whoever hates me hates my Father as well. 24 If I had not done among them the works no one else did, they would not be guilty of sin. As it is, they have seen, and yet they have hated both me and my Father. 25 But this is to fulfill what is written in their Law: ‘They hated me without reason.’
I chose this particular verse because it gives evidence of God choosing us (I expect you to read the full book, and not at one verse a day, or something else that removes the true meaning). We have been chosen by God. Scripture is clear that we can only be saved by God's grace; therefore, he must choose us.
1 That same day Jesus went out of the house and sat by the lake. 2 Such large crowds gathered around him that he got into a boat and sat in it, while all the people stood on the shore. 3 Then he told them many things in parables, saying: “A farmer went out to sow his seed. 4 As he was scattering the seed, some fell along the path, and the birds came and ate it up. 5 Some fell on rocky places, where it did not have much soil. It sprang up quickly, because the soil was shallow. 6 But when the sun came up, the plants were scorched, and they withered because they had no root. 7 Other seed fell among thorns, which grew up and choked the plants. 8 Still other seed fell on good soil, where it produced a crop—a hundred, sixty or thirty times what was sown. 9 Whoever has ears, let them hear.”
10 The disciples came to him and asked, “Why do you speak to the people in parables?”
11 He replied, “Because the knowledge of the secrets of the kingdom of heaven has been given to you, but not to them. 12 Whoever has will be given more, and they will have an abundance. Whoever does not have, even what they have will be taken from them. 13 This is why I speak to them in parables:
“Though seeing, they do not see;
though hearing, they do not hear or understand.
14 In them is fulfilled the prophecy of Isaiah:
“‘You will be ever hearing but never understanding;
you will be ever seeing but never perceiving.
15 For this people’s heart has become calloused;
they hardly hear with their ears,
and they have closed their eyes.
Otherwise they might see with their eyes,
hear with their ears,
understand with their hearts
and turn, and I would heal them.’
16 But blessed are your eyes because they see, and your ears because they hear. 17 For truly I tell you, many prophets and righteous people longed to see what you see but did not see it, and to hear what you hear but did not hear it.
18 “Listen then to what the parable of the sower means: 19 When anyone hears the message about the kingdom and does not understand it, the evil one comes and snatches away what was sown in their heart. This is the seed sown along the path. 20 The seed falling on rocky ground refers to someone who hears the word and at once receives it with joy. 21 But since they have no root, they last only a short time. When trouble or persecution comes because of the word, they quickly fall away. 22 The seed falling among the thorns refers to someone who hears the word, but the worries of this life and the deceitfulness of wealth choke the word, making it unfruitful. 23 But the seed falling on good soil refers to someone who hears the word and understands it. This is the one who produces a crop, yielding a hundred, sixty or thirty times what was sown.” (Matthew 13:1-23 NIV)
Only those of God can understand, and only they will accept.
1 Paul, an apostle of Christ Jesus by the will of God,
To God’s holy people in Ephesus, the faithful in Christ Jesus:
2 Grace and peace to you from God our Father and the Lord Jesus Christ.
3 Praise be to the God and Father of our Lord Jesus Christ, who has blessed us in the heavenly realms with every spiritual blessing in Christ. 4 For he chose us in him before the creation of the world to be holy and blameless in his sight. In love 5 he predestined us for adoption to sonship through Jesus Christ, in accordance with his pleasure and will— 6 to the praise of his glorious grace, which he has freely given us in the One he loves. 7 In him we have redemption through his blood, the forgiveness of sins, in accordance with the riches of God’s grace 8 that he lavished on us. With all wisdom and understanding, 9 he made known to us the mystery of his will according to his good pleasure, which he purposed in Christ, 10 to be put into effect when the times reach their fulfillment—to bring unity to all things in heaven and on earth under Christ.
11 In him we were also chosen, having been predestined according to the plan of him who works out everything in conformity with the purpose of his will, 12 in order that we, who were the first to put our hope in Christ, might be for the praise of his glory. 13 And you also were included in Christ when you heard the message of truth, the gospel of your salvation. When you believed, you were marked in him with a seal, the promised Holy Spirit, 14 who is a deposit guaranteeing our inheritance until the redemption of those who are God’s possession—to the praise of his glory.
15 For this reason, ever since I heard about your faith in the Lord Jesus and your love for all God’s people, 16 I have not stopped giving thanks for you, remembering you in my prayers. 17 I keep asking that the God of our Lord Jesus Christ, the glorious Father, may give you the Spirit of wisdom and revelation, so that you may know him better. 18 I pray that the eyes of your heart may be enlightened in order that you may know the hope to which he has called you, the riches of his glorious inheritance in his holy people, 19 and his incomparably great power for us who believe. That power is the same as the mighty strength 20 he exerted when he raised Christ from the dead and seated him at his right hand in the heavenly realms, 21 far above all rule and authority, power and dominion, and every name that is invoked, not only in the present age but also in the one to come. 22 And God placed all things under his feet and appointed him to be head over everything for the church, 23 which is his body, the fullness of him who fills everything in every way. (Ephesians 1:1-23)
Scripture is clear that we were "predestined," and that God has chosen those who accept him in their hearts.
Scripture is also clear that Christ died for all.
1 For we know that if the earthly tent we live in is destroyed, we have a building from God, an eternal house in heaven, not built by human hands. 2 Meanwhile we groan, longing to be clothed instead with our heavenly dwelling, 3 because when we are clothed, we will not be found naked. 4 For while we are in this tent, we groan and are burdened, because we do not wish to be unclothed but to be clothed instead with our heavenly dwelling, so that what is mortal may be swallowed up by life. 5 Now the one who has fashioned us for this very purpose is God, who has given us the Spirit as a deposit, guaranteeing what is to come.
6 Therefore we are always confident and know that as long as we are at home in the body we are away from the Lord. 7 For we live by faith, not by sight. 8 We are confident, I say, and would prefer to be away from the body and at home with the Lord. 9 So we make it our goal to please him, whether we are at home in the body or away from it. 10 For we must all appear before the judgment seat of Christ, so that each of us may receive what is due us for the things done while in the body, whether good or bad.
11 Since, then, we know what it is to fear the Lord, we try to persuade others. What we are is plain to God, and I hope it is also plain to your conscience. 12 We are not trying to commend ourselves to you again, but are giving you an opportunity to take pride in us, so that you can answer those who take pride in what is seen rather than in what is in the heart. 13 If we are “out of our mind,” as some say, it is for God; if we are in our right mind, it is for you. 14 For Christ’s love compels us, because we are convinced that one died for all, and therefore all died. 15 And he died for all, that those who live should no longer live for themselves but for him who died for them and was raised again.
16 So from now on we regard no one from a worldly point of view. Though we once regarded Christ in this way, we do so no longer. 17 Therefore, if anyone is in Christ, the new creation has come: The old has gone, the new is here! 18 All this is from God, who reconciled us to himself through Christ and gave us the ministry of reconciliation: 19 that God was reconciling the world to himself in Christ, not counting people’s sins against them. And he has committed to us the message of reconciliation. 20 We are therefore Christ’s ambassadors, as though God were making his appeal through us. We implore you on Christ’s behalf: Be reconciled to God. 21 God made him who had no sin to be sin for us, so that in him we might become the righteousness of God. (2 Corinthians 5:1-21 NIV)
Christ died for all, but only some will accept him.
Does this mean, then, that to be saved, a person has to be one of Christ’s sheep, and that all of Christ’s sheep are elect – chosen to be Christ’s sheep? Is it for those ones only that Christ died?
Yes (remember, Christ died for all).
Does this mean that some will never believe because they were never Christ’s sheep?
Yes.