Rom 10:9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.I believe salvation is not conditional upon suffering tribulation. Salvation is granted by the acceptance of the atoning sacrifice of the death of the Lord Jesus Christ, who died in our place, and by believing, and testifying about our belief.
Rom 10:10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.
John 16:33 These things I have spoken unto you, that in me ye might have peace. In the world ye shall have tribulation: but be of good cheer; I have overcome the world.
2 Corinthians 1:4 Who comforteth us in all our tribulation, that we may be able to comfort them which are in any trouble, by the comfort wherewith we ourselves are comforted of God.
1 Thessalonians 3:4 For verily, when we were with you, we told you before that we should suffer tribulation; even as it came to pass, and ye know.
2 Thessalonians 1:4 So that we ourselves glory in you in the churches of God for your patience and faith in all your persecutions and tribulations that ye endure:
Revelation 1:9 I John, who also am your brother, and companion in tribulation, and in the kingdom and patience of Jesus Christ, was in the isle that is called Patmos, for the word of God, and for the testimony of Jesus Christ.
Tribulations of the Church are also described in Matthew 24:
However, all of these tribulations are of a different type of tribulation than the tribulation to come. The tribulation to come, by definition, is unlike any other time and unlike any other tribulation.
Matthew 24:9 Then shall they deliver you up to be afflicted, and shall kill you: and ye shall be hated of all nations for my name's sake.
10 And then shall many be offended, and shall betray one another, and shall hate one another.
11 And many false prophets shall rise, and shall deceive many.
Matt 24:21 For then shall be great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be.The objections assume that we will not face any tribulation that would make us worthy until the great tribulation to come, and that is wrong, because we face tribulation now, because Christians are fundamentally at odds with the world in many ways. Therefore, since there is tribulation in the world now, there is no need for faithful Christians to suffer an additional "great tribulation" to come, that is uniquely different than the tribulations we already face.
Luke 21:36 Watch ye therefore, and pray always, that ye may be accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man.In addition, Revelation 3 is quite clear regarding the contrasts between the Philadelphian and Laodician Churches. Philadelphia is worthy, and Laodicia is not, and worthiness has nothing to do with whether or not they have already endured tribulation, it's because Philadelphia was faithful and did not deny the name of the Lord, while Laodicia was lukewarm.
Rev 3:8 I know thy works: behold, I have set before thee an open door, and no man can shut it: for thou hast a little strength, and hast kept my word, and hast not denied my name.
Rev 3:10 Because you have kept my word of patient endurance, I will keep you from the hour of trial which is coming on the whole world, to try those who dwell upon the earth.
Rev 3:16 So then because thou art lukewarm, and neither cold nor hot, I will spue thee out of my mouth.In the context, the "hour of trial" will come upon the lukewarm, and the faithful will be spared that coming "hour of trial" or tribulation.
Hebrews 11:35 Women received their dead raised to life again: and others were tortured, not accepting deliverance; that they might obtain a better resurrection:So it's not a question of us being better than them. In fact, while the Apostles and other martyrs will be caught up at the time of the rapture as well, seeing as how the resurrection comes first (1 Thess 4:19-17), this means they will not miss out on anything. And, it may well be that in heaven, the martrys may have more or better rewards than us! They might have built foundations of gold, and we might be building foundations of silver by way of comparison.
1 Cor 3:8 Now he that planteth and he that watereth are one: and every man shall receive his own reward according to his own labour.Another assumption in the question is that the tribulations faced by the Apostles and the tribulation to come are the same, and I have already showed that the two tribulations are different, by definition. The one to come is simply unlike any other time.
9 For we are labourers together with God: ye are God's husbandry, ye are God's building.
10 According to the grace of God which is given unto me, as a wise masterbuilder, I have laid the foundation, and another buildeth thereon. But let every man take heed how he buildeth thereupon.
11 For other foundation can no man lay than that is laid, which is Jesus Christ.
12 Now if any man build upon this foundation gold, silver, precious stones, wood, hay, stubble;
13 Every man's work shall be made manifest: for the day shall declare it, because it shall be revealed by fire; and the fire shall try every man's work of what sort it is.
14 If any man's work abide which he hath built thereupon, he shall receive a reward.