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.

Therefore, although in [the fellowship of] Christ I have enough boldness to order you to do the proper thing,

For possibly Onesimus left you for a short time so that you could have him [back] forever,

So, brother, I would like to have your help in [the fellowship of] the Lord; cheer me up in Christ [i.e., by welcoming Onesimus back on good terms].