NET

23 if indeed you remain in the faith, established and firm, without shifting from the hope of the gospel that you heard. This gospel has also been preached in all creation under heaven, and I, Paul, have become its servant.

Darby

23 if indeed ye abide in the^D8745 faith founded and firm, and not moved away from the hope of the glad tidings, which ye have heard, which have been proclaimed in the whole creation^D8746 which [is] under heaven, of which *I* Paul became minister.

Darby Bible Notes

the - Or 'in faith,' that is, full assurance of heart in the gospel. creation - The word is used either of 'the creation,' or abstractly of 'the creature' as such; once for 'institution,' 1Pet. 2.13. Thus, in ver. 15, it is not of each individual as such, but of everything called 'creation' in its nature. see Heb. 9.11.

KJV

23 If ye continue in the faith grounded and settled, and [be] not moved away from the hope of the gospel, which ye have heard, [and] which was preached to every creature which is under heaven; whereof I Paul am made a minister;