1 Thessalonians 3:7-10

for this cause, brethren, we were comforted over you in all our distress and affliction through your faith: for now we live, if ye stand fast in the Lord. For what thanksgiving can we render again unto God for you, for all the joy wherewith we joy for your sakes before our God; night and day praying exceedingly that we may see your face, and may perfect that which is lacking in your faith?