Tribulation is a testing of the faith. A refining or the gold and silver of what God has produced in us through sanctification. Wrath is God’s judgement and punishment poured out on sinners.
Jesus promised believers tribulation in John 16:33 I have said these things to you, that in me you may have peace. In the world you will have tribulation. But take heart; I have overcome the world.”
Revelation 7:14 I said to him, “Sir, you know.” And he said to me, “These are the ones coming out of the great tribulation. They have washed their robes and made them white in the blood of the Lamb.
Tribulation is promised to believers, believers go through the tribulation in Revelation.
If indeed believers go through the Tribulation, I daresay many won’t make it.
Speaking for myself, I can’t take pain. If I have to see my kids tortured or killed, if I am tortured and starved for my belief in Jesus, I have serious doubts I wouldn’t crack and renounce my faith for some relief, or to relieve others. Not to mention the things God Himself is going to do...boils, sores, scorching heat, water turned to blood, etc. Ad Infinitum. The thought of having to go through the Tribulation is depressing, and how a believer in Christ can look forward to it, much less tell others to look forward to it, is beyond me.