1 Thessalonians 4:10

4:10 And indeed you are practicing it toward all the brothers and sisters in all of Macedonia. But we urge you, brothers and sisters, to do so more and more,

Romans 15:14

Paul’s Motivation for Writing the Letter

15:14 But I myself am fully convinced about you, my brothers and sisters, that you yourselves are full of goodness, filled with all knowledge, and able to instruct one another.

Romans 15:2

15:2 Let each of us please his neighbor for his good to build him up.

Romans 1:12

1:12 that is, that we may be mutually comforted by one another’s faith, both yours and mine.