KJV : If <1487> I be <1510> (5748) not <3756> an apostle <652> unto others <243>, yet <235> doubtless <1065> I am <1510> (5748) to you <5213>: for <1063> the seal <4973> of mine <1699> apostleship <651> are <2075> (5748) ye <5210> in <1722> the Lord <2962>.

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NASB : If to others I am not an apostle, at least I am to you; for you are the seal of my apostleship in the Lord.

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NASB# : If<1487> to others<243> I am<1510> not an apostle<652>, at least<235><1065> I am<1510> to you; for you are the seal<4973> of my apostleship<651> in the Lord<2962>.