'Partaker' in the Bible

Or saith he it altogether for our sakes? For our sakes, no doubt, this is written: that he that ploweth should plow in hope; and that he that thresheth in hope should be partaker of his hope.

And this I do for the gospel's sake, that I might be partaker thereof with you.

For if I by grace be a partaker, why am I evil spoken of for that for which I give thanks?