Most beloved, you should act faithfully in whatever you do for the brothers, and those who are sojourners
Other versions
King James Version
Beloved, thou doest faithfully whatsoever thou doest to the brethren, and to strangers;English Standard Version
Beloved, it is a faithful thing you do in all your efforts for these brothers, strangers as they are,New International Version
Dear friend, you are faithful in what you are doing for the brothers, even though they are strangers to you.