'Course' in the Bible

and as John was fulfilling the course, he said, Whom me do ye suppose to be? I am not he, but, lo, he doth come after me, of whom I am not worthy to loose the sandal of his feet.

having set sail, therefore, from Troas, we came with a straight course to Samothracia, on the morrow also to Neapolis,

but I make account of none of these, neither do I count my life precious to myself, so that I finish my course with joy, and the ministration that I received from the Lord Jesus, to testify fully the good news of the grace of God.

And we, having finished the course, from Tyre came down to Ptolemais, and having saluted the brethren, we remained one day with them;