1 Thessalonians 5:9 "9 For God hath not appointed us to wrath, but to obtain salvation by our Lord Jesus Christ,"
The key word here is wrath and what it means in the Greek. The word here is: ὀργή. The translation of this into English alphabet is: orgḗ (or-gay). This word has been translated thusly in to the following words: anger, 3; indignation, 1; vengeance, 1; wrath, 31. The Thayer definition of this word is the following:
1. anger, the natural disposition, temper, character
2. movement or agitation of the soul, impulse, desire, any violent emotion, but esp. anger
3. anger, wrath, indignation
a. anger exhibited in punishment, hence used for punishment itself
of punishments inflicted by magistrates.
This indicates that the understanding attributed here to mean the tribulation is incongruent with the actual meaning of the word.
Therefore it is my understanding and my theory that this verse should be correctly understood to say and or mean, "9 For God hath not appointed us to anger (to be angry) (hard to get along with) (contentious), but to obtain salvation by our Lord Jesus Christ,