2 John 1:4

I was very happy when I learned that some of your children [i.e., members of the congregation] are living in [harmony with the] truth, just as we have been commanded to do by the Father.

Treasury of Scripture Knowledge

Summary

My son, be wise, and make my heart glad, that I may answer him that reproacheth me.

Bible References

Be wise

Philemon 1:7
For I have much joy and encouragement from [observing] your love, because you have cheered the hearts of the saints [i.e., God's holy people], brother.
2 John 1:4
I was very happy when I learned that some of your children [i.e., members of the congregation] are living in [harmony with the] truth, just as we have been commanded to do by the Father.