Adam Clarke's Commentary on the Bible - 2 Thessalonians 1:6
Seeing it is a righteous thing - Though God neither rewards nor punishes in this life in a general way, yet he often gives proofs of his displeasure, especially against those who persecute his followers. They, therefore, who have given you tribulation, shall have tribulation in recompense. read more
Adam Clarke's Commentary on the Bible - 2 Thessalonians 1:5
A manifest token of the righteousness judgement of God - The persecutions and tribulations which you endure, are a manifest proof that God has judged righteously in calling you Gentiles into his Church; and these sufferings are also a proof that ye are called in; for they who enter into the kingdom of God go through great tribulation; your going through that tribulation is a proof that ye are entering in, and God sees it right and just that ye should be permitted to suffer before ye enjoy... read more