We ought therefore to show hospitality to such people so that we may work together for the truth.
NIV
So we ourselves ought to support such people [to welcome and provide for them], in order that we may be fellow workers in the Truth (the whole Gospel) and cooperate with its teachers.
AMP
We therefore ought to receive such, that we might be fellowhelpers to the truth.
KJV
As you help us by your prayers. Then many will give thanks on our behalf for the gracious favor granted us in answer to the prayers of many.
NIV
While you also cooperate by your prayers for us [helping and laboring together with us]. Thus [the lips of] many persons [turned toward God will eventually] give thanks on our behalf for the grace (the blessing of deliverance) granted us at the request of the many who have prayed.
AMP
Ye also helping together by prayer for us, that for the gift bestowed upon us by the means of many persons thanks may be given by many on our behalf.
KJV