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.
“And to the angel of the church in Sardis write: 'The words of him who has the seven spirits of God and the seven...
Jeremiah 6:10. God's Word offended them and caused them to stumble. It did not please them at all. They were not eager to use...
The Lord is my strength and my shield; in him my heart trusts, and I am helped; my heart exults, and with my song...
