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;
Groweth exceedingly -- This wording indicates vigorous growth. Paul’s early fear in 1 Thessalonians 3:1 1 Thessalonians 3:12 is gone. 