NET
4 begging us with great earnestness for the blessing and fellowship of helping the saints.
Darby
4 begging of us with much entreaty [to give effect to] the grace and fellowship of the service which [was to be rendered] to the saints.
KJV
4 Praying us with much intreaty that we would receive the gift, and [take upon us] the fellowship of the ministering to the saints.