We are bound to always give thanks to God for you, brothers,{The word for "brothers" here and where context allows may also be correctly translated "brothers and sisters" or "siblings."} even as it is appropriate, because your faith grows exceedingly, and the love of each and every one of you towards one another abounds;
Certainly the love they express for one another is the result of their growing in faith. The Thessalonian believers excel in pure love, love that could be produced only by faith that is a growing faith. In the first letter to the Thessalonians, Paul acknowledges their excellent love one for another and then exhorts them to "abound in love" (3:12). The very essence of Christianity is love first for God and then love for our kinsmen in the Lord. The phrase "every one of you for one another" indicates the love is not just general but is individually manifested.