'Fellow partaker' in the Bible

Now if some of the branches have been broken out, and thou, being a wild olive tree, hast been grafted in amongst them, and hast become a fellow-partaker of the root and of the fatness of the olive tree,

And I do all things for the sake of the glad tidings, that I may be fellow-partaker with them.

I John, your brother and fellow-partaker in the tribulation and kingdom and patience, in Jesus, was in the island called Patmos, for the word of God, and for the testimony of Jesus.