'Sharing' in the Bible

[You behave as if] you are already filled [with spiritual wisdom and in need of nothing more]. Already you have become rich [in spiritual gifts]! You [in your conceit] have ascended your thrones and become kings without us; and how I wish [that it were true and] that you did reign as kings, so that we might reign with you.

Or isn’t He really saying it for us? Yes, this is written for us, because he who plows ought to plow in hope, and he who threshes should do so in hope of sharing the crop.

The cup of blessing that we give thanks for, is it not a sharing in the blood of Christ? The bread that we break, is it not a sharing in the body of Christ?