First importance

 For I handed on to you as of first importance what I in turn had received: that Christ died for our sins in accordance with the scriptures. - 1 Corinthians 15:3

God not only cares about how many people will be in the choir singing praises to the Lamb, He cares from what people group they came from too.

 They sing a new song:

“You are worthy to take the scroll
    and to open its seals,
for you were slaughtered and by your blood you ransomed for God
    saints from^[a] every tribe and language and people and nation; you have made them to be a kingdom and priests serving^[b] our God,
    and they will reign on earth.” - Revelation 5:9-10

John himself was overwhelmed -

 After this I looked, and there was a great multitude that no one could count, from every nation, from all tribes and peoples and languages, standing before the throne and before the Lamb, robed in white, with palm branches in their hands.- Revelation 7:9

Most of you will remember Nate Saint as the team pilot for the group of five who went to bring the gospel to the Auca's. He was martyred along with the other four.  On December 18th, 1955 a few weeks before his death, he wrote this Christmas Letter to his friends and family --

“As we weigh the future and seek the will of God, does it seem right that we should hazard our lives for just a few savages? As we ask ourselves this question, we realize that it is not the call of the needy thousands, rather it is the simple intimation of the prophetic Word that there shall be some from every tribe in His presence in the last day and in our hearts we feel that it is pleasing to Him that we should interest ourselves in making an opening into the Auca prison for Christ.
As we have a high old time this Christmas, may we who know Christ hear the cry of the damned as they hurtle headlong into the Christless night without ever a chance. May we be moved with compassion as our Lord was. May we shed tears of repentance for these we have failed to bring out of darkness. Beyond the smiling scenes of Bethlehem may we see the crushing agony of Golgotha. May God give us a new vision of His will concerning the lost and our responsibility.
Would that we could comprehend the lot of these stone-age people who live in mortal fear of ambush on the jungle trail . . . those to whom the bark of a gun means sudden, mysterious death . . . those who think all men in all the world are killers like themselves. If God would grant us the vision, the word sacrifice would disappear from our lips and thoughts; we would hate the things that seem now so dear to us; our lives would suddenly be too short, we would despise time-robbing distractions and charge the enemy with all our energies in the name of Christ. May God help us to judge ourselves by the eternities that separate the Aucas from a comprehension of Christmas and Him, who, though He was rich, yet for our sakes became poor so that we might, through His poverty, be made rich.”

Many of us make a big thing out of those who do not believe in hell.  But we are missing the greater shame - that we who do believe in hell make so little effort to keep others from going there.

 For, “Everyone who calls on the name of the Lord shall be saved.”
 But how are they to call on one in whom they have not believed? And how are they to believe in one of whom they have never heard? And how are they to hear without someone to proclaim him?  And how are they to proclaim him unless they are sent? As it is written, “How beautiful are the feet of those who bring good news!” - Romans 10:13-15

I am afraid that we have assumed that God has multiplied our assets so we can keep them, when in fact He has multiplied them so we can distribute them.

 Cure the sick, raise the dead, cleanse the lepers,^[a] cast out demons. You received without payment; give without payment.- Matthew 10:8

The dead do not hear the gospel - to allow people to die or suffer is unconscionable.  On the other hand, people who do not hear the gospel cannot go to heaven, so to feed them is right but to neglect to share the gospel is wrong.

Unpopular subject

Scripture suggests that some Christians will be ashamed at Christ's coming.

Hell will be terrible for all, but it will be more terrible for some than others, depending on their works on earth.

All Christians have not the same enjoyment of God in this life, neither indeed were they able to bear it if they had it (1 Cor 3:2). But those Christians that are most laborious for God in this world, they have already most of him in their souls, and that not only because diligence in God's ways, is the means whereby God communicates himself; but also because thereby the senses are made more strong, and able, by reason of use, to understand God, and to discern both good and evil (Heb 5:13,14). To him that hath, to him shall be given, and he shall have more abundance (Matt 13:11,12). He that laid out his pound for his master, and gained ten therewith, he was made ruler over ten cities; but he that by his pound gained but five, he was made ruler over but five (Luke 19:16-19). Often, he that is best bred in his youth, he is best able to manage most, when he is a man, touching things of this life (Dan 1:3,4); but always he that is best bred, and that is most in the bosom of God, and that so acts for him here; he is the man that will be best able to enjoy most of God in the kingdom of heaven. It is observable that Paul saith, "Our - affliction - - worketh for us a far more exceeding and eternal weight of glory" (2 Cor 4:17). Our afflictions do it, not only because there is laid up a reward for the afflicted, according to the measure of affliction; but because afflictions, and so every service of God, doth make the heart more deep, more experimental, more knowing and profound; and so more able to hold, contain, and bear more (Psa 119:71). "Every man shall receive his own reward, according to his own labour" (1 Cor 3:8). And this is the reason of such sayings as these–Lay up for yourselves a good foundation against the time to come, that you may lay hold on eternal life (1 Tim 6:19), which eternal life, is not the matter of our justification from sin in the sight of God; for that is done freely by grace, through faith in Christ's blood; (but here the apostle speaks of giving of alms) but it is the same that in the other place he calls "the far more exceeding and eternal weight of glory." And hence it is that he in his stirring them up to be diligent in good works, doth tell them, that he doth not exhort them to it because he wanted, but because he would have "fruit that might abound to their account" (Phil 4:17); as he saith also in another place, "Beloved brethren, be ye stedfast, unmoveable, always abounding in the work of the Lord, forasmuch as ye know that your labour is not in vain in the Lord" (1 Cor 15:58). Therefore I say, the reward that the saints shall have at this day for all the good they have done, it is the enjoyment of God, according to their works: though they shall be freely justified and glorified without works. - John Bunyan

Hell: The Most Unpopular Subject in the World (and sometimes in the Church)

Hell

Hell is a place of punishment designed for Satan and the fallen angels.  However, it will also be inhabited by those who do not accept God's gift of redemption in Christ.

Hell is an actual place, clearly and graphically spoken of by Jesus.  Hell is as literal as heaven, and despite recent claims to the contrary, as eternal as heaven.  Hell is a horrible place of suffering and everlasting destruction.  In hell, people are fully conscious and retain all of their capacities and desires with no hope for any fulfillment for all eternity.

The severity of punishment will vary with degree of truth known and the nature and number of sins committed.  This concept is foreign to most Christians, but is clearly taught in Scripture.  This is no consolation, however, since the "best" of hell will still be hell -- eternal exclusion from the presence of God and the soothing light of His grace.