Did Christ die for the sins of all mankind, even those who do not follow Him and are cast into the lake burning with fire and brimstone? Of course not!! This kind of thinking cheapens the blood of Christ! Is His blood so ineffectual that, should it have been shed for even unbelivers, there would still be many that go in through the wide gate?
Consider Ephesians 5:25--"Husbands, love your wives, even as Christ also loved the church, and gave himself for it;" and 1st John 2:19--"They went out from us, but they were not of us; for if they had been of us, they would have continued with us: but they went out, that they might be made manifest that they were not all of us." So, how does anyone say that the salvation that is of the LORD is applied to those whom the LORD does not count to be among those who are in Christ?
Of course, one may say, "But what about 1st John 2:2? 'And he is the propitiation for our sins: and not for ours only, but also for [the sins of] the whole world.' " Good question. First, we must take into account the verse immediately prior. "My little children, these things write I unto you, that ye sin not. And if any man sin, we have an advocate with the Father, Jesus Christ the righteous:" Christ's propitiation would be effective for every single person who has ever lived, if they would but bend their knee, humble themselves, and believe upon His name and His sacrifice for their forgiveness.
However, this is not the case. For there are those who reject the calling of the Holy Spirit. This is what our Lord meant when He said, ""Assuredly, I say to you, all sins will be forgiven the sons of men, and whatever blasphemies they may utter; but he who blasphemes against the Holy Spirit never has forgiveness, but is subject to eternal condemnation" Does this sound as though Christ has offered universal salvation to any and all people who simply come into existence? If so, well, I'm not quite sure what to say. Perhaps it is I who needs enlightening for thinking that when our Savior says that those who reject the calling of the Holy Spirit cannot have their sins forgiven.
Friend, only those who repent of their sins and call upon the name of the Lord Jesus Christ for forgiveness, and seek to live in a godly manner shall recieve eternal life in the kingdom of GOD. Do not reject the calling of the Holy Spirit. We are not promised another day, let alone another minute. Is eternity important? It's only the most important decision you will ever make. So make the right decision now. Make forever certain.
May the LORD establish and keep you. Amen.