The Second Epistle of St. Paul to the Thessalonians (Author Paul)
1:3gratias agere debemus Deo semper pro vobis fratres ita ut dignum est quoniam supercrescit fides vestra et abundat caritas uniuscuiusque omnium vestrum in invicem
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.