Verse 13. For this cause also thank we God. In addition to the reasons for thankfulness already suggested, the apostle here refers to the fact, that they received the truth, when it was preached, in such a way as to show that they fully believed it to be the word of God.

Not as the word of men. Not of human origin, but as a Divine revelation. You were not led to embrace it by human reasoning, or the mere arts of persuasion, or from personal respect for others, but by your conviction that it was a revelation from God. It is only when the gospel is embraced in this way, that religion will show itself sufficient to abide the fiery trials to which Christians may be exposed. He who is convinced by mere human reasoning, may have his faith shaken by opposite, artful reasoning; he who is won by the mere arts of popular eloquence, will have no faith which will be proof against similar arts in the cause of error; he who embraces religion from mere respect for a pastor, parent, or friend, or because others do, may abandon it when the popular current shall set in a different direction, or when his friends shall embrace different views; but he who embraces religion as the truth of God, and from the love of the truth, will have a faith, like that Of the Thessalonians, which will abide every trial.

Which effectually worketh also in you that believe. The word rendered "which" here -- ov -- may be referred either to "truth" or to "God." The grammatical construction will admit of either, but it is not material which is adopted. Either of them expresses a sense undeniably true, and of great importance. The meaning is, that the truth was made efficacious in the minds of all who became true Christians. It induced them to abandon their sins, to devote themselves to God, to lead pure and holy lives, and enabled them to abide the trials and temptations of life. Comp.

See Barnes "Php 2:12, See Barnes "Php 2:13"; See Barnes "Heb 13:21".

The particular illustration here is, that when they embraced the gospel, it had such an efficacy on their hearts as to prepare them to meet all the terrors of bitter persecution without shrinking.

{e} "not as" Mt 10:40; 2 Pe 3:2 {f} "worketh also" Jas 1:18; 1 Pe 1:23