Berean Standard Bible (BSB)
so that we can preach the gospel in the regions beyond you. Then we will not be boasting in the work already done in another man’s territory.
World English Bible (WEB)
so as to preach the Good News even to the parts beyond you, not to boast in what someone else has already done.
Strong's King James
To preach the gospel{G2097}{(G5670)} in{G1519} the regions beyond{G5238} you{G5216}, and not{G3756} to boast{G2744}{(G5664)} in{G1722} another man's{G245} line{G2583} of{G1519} things made ready to our hand{G2092}.
The F.O.G *
(16) So proclaiming the good news to the regions beyond you we don't boast in what's prepared in another's assignment.
The F.O.G Message *
Young's Literal Translation
in the places beyond you to proclaim good news, not in another’s line in regard to the things made ready, to boast;