See Jeremiah 31:31-34 and Luke 22:14-23. This is language first used in Jeremiah's promise of rescue and renewal of the exiled people of God in Babylon. It promises a coming day when God would make a new covenant unlike the one which Israel had broken.
To be branches on the Vine who is Christ. To be rooted and connected, to grow and mature, and to reach out and bear...
“I do not pray for these alone, but also for those who will believe in Me through their word; that they all may be...
Then God said, “Behold, I have given you every plant yielding seed that is on the surface of all the earth, and every tree...