Berean Standard Bible (BSB)
Even if I am not an apostle to others, surely I am to you. For you are the seal of my apostleship in the Lord.
World English Bible (WEB)
If to others I am not an apostle, yet at least I am to you; for you are the seal of my apostleship in the Lord.
Strong's King James
If{G1487} I be{G1510}{(G5748)} not{G3756} an apostle{G652} unto others{G243}, yet{G235} doubtless{G1065} I am{G1510}{(G5748)} to you{G5213}: for{G1063} the seal{G4973} of mine{G1699} apostleship{G651} are{G2075}{(G5748)} ye{G5210} in{G1722} the Lord{G2962}.
The F.O.G *
(2) Perhaps to others I'm not an ambassador but at least to you I am for you are the seal of my ambassadorship in יהוה YAHWEH.
The F.O.G Message *
Young's Literal Translation
if to others I am not an apostle—yet doubtless to you I am; for the seal of my apostleship are ye in the Lord.
