Hi pilchard,
Jesus is negotiating the terms and conditions of the Covenant arrangement. He is performing the same role with the New Covenant that Moses did with the Old Covenant.
Just to make it clear, there is no negotiation, the covenant was set long ago.
Jeremiah 31:31-66 (New International Version)
31 "The time is coming," declares the LORD,
"when I will make a new covenant
with the house of Israel
and with the house of Judah.
32 It will not be like the covenant
I made with their forefathers
when I took them by the hand
to lead them out of Egypt,
because they broke my covenant,
though I was a husband to them, "
declares the LORD.
33 "This is the covenant I will make with the house of Israel
after that time," declares the LORD.
"I will put my law in their minds
and write it on their hearts.
I will be their God,
and they will be my people.
34 No longer will a man teach his neighbor,
or a man his brother, saying, 'Know the LORD,'
because they will all know me,
from the least of them to the greatest,"
declares the LORD.
"For I will forgive their wickedness
and will remember their sins no more."
35 This is what the LORD says,
he who appoints the sun
to shine by day,
who decrees the moon and stars
to shine by night,
who stirs up the sea
so that its waves roar—
the LORD Almighty is his name:
36 "Only if these decrees vanish from my sight,"
declares the LORD,
"will the descendants of Israel ever cease
to be a nation before me."
37 This is what the LORD says:
"Only if the heavens above can be measured
and the foundations of the earth below be searched out
will I reject all the descendants of Israel
because of all they have done,"
declares the LORD.
38 "The days are coming," declares the LORD, "when this city will be rebuilt for me from the Tower of Hananel to the Corner Gate. 39 The measuring line will stretch from there straight to the hill of Gareb and then turn to Goah. 40 The whole valley where dead bodies and ashes are thrown, and all the terraces out to the Kidron Valley on the east as far as the corner of the Horse Gate, will be holy to the LORD. The city will never again be uprooted or demolished."
One interesting thing to notice is this verse
Jeremiah 31:32 (American Standard Version)
32 not according to the covenant that I made with their fathers in the day that I took them by the hand to bring them out of the land of Egypt; which my covenant they brake, although I was a husband unto them, saith Jehovah.
So who is the bridegroom?Revelation 19:7 (New International Version)
7 Let us rejoice and be glad
and give him glory!
For the wedding of the Lamb has come,
and his bride has made herself ready.
Revelation 21:9 (New International Version)
9 One of the seven angels who had the seven bowls full of the seven last plagues came and said to me, "Come, I will show you the bride, the wife of the Lamb."
Yes, He is Jesus.
All the best,
Stephen