Bible Encyclopedias
Tribulation

Cyclopedia of Biblical, Theological and Ecclesiastical Literature

( צָר, θλίψις, both literally signifying. pressure or straits) expresses in the A. V. much the same as trouble or trial, importing afflictive dispensations to which a person is subjected either by way of punishment (see Judges 10:14; Matthew 24:21; Matthew 24:29; Romans 2:9 2 Thessalonians 1:6) or by way of trial (see John 16:33; Romans 5:3; 2 Thessalonians 1:4).

Bibliography Information
McClintock, John. Strong, James. Entry for 'Tribulation'. Cyclopedia of Biblical, Theological and Ecclesiastical Literature. https://www.studylight.org/​encyclopedias/​eng/​tce/​t/tribulation.html. Harper & Brothers. New York. 1870.