'Sphere' in the Bible

But we will not boast beyond our measure, but within the measure of the sphere which God apportioned to us as a measure, to reach even as far as you.

not boasting beyond our measure, that is, in other men’s labors, but with the hope that as your faith grows, we will be, within our sphere, enlarged even more by you,

so as to preach the gospel even to the regions beyond you, and not to boast in what has been accomplished in the sphere of another.