[My] dearly loved [friend], I am praying that you will do well in everything [materially ?] and that you will have [good] health, just as your soul [i.e., your spiritual life] is doing well.

Beloved, imitate not the evil, but the good. The one doing good is of God: the one doing evil has not seen God.

So, if I come [to visit you], I will remind you of what he is doing, [such as] using wicked words to talk nonsense against us [apostles]. And, not being satisfied with that, he [also] refuses to welcome the [other] brothers, and prevents [other] people from doing so [i.e., from welcoming these brothers], and even kicks them out of the church [for trying to].

Dear friend, you are showing faithfulness by whatever you do for the brothers, especially when they are strangers.