The word that the LORD spake against Babylon and against the land of the Chaldeans by Jeremiah the prophet.
“Declare ye among the nations, and publish, and set up a standard; publish, and conceal not: say, ‘Babylon is taken, Bel is confounded, Merodach is broken in pieces; her idols are confounded, her images are broken in pieces.’  For out of the north there cometh up a nation against her, which shall make her land desolate, and none shall dwell therein: they shall remove, they shall depart, both man and beast.
“In those days, and in that time,” saith the LORD, “the children of Israel shall come, they and the children of Judah together, going and weeping: they shall go, and seek the LORD their God. They shall ask the way to Zion with their faces thitherward, saying, ‘Come, and let us join ourselves to the LORD in a perpetual covenant that shall not be forgotten.’
“My people hath been lost sheep: their shepherds have caused them to go astray, they have turned them away on the mountains: they have gone from mountain to hill, they have forgotten their restingplace.  All that found them have devoured them: and their adversaries said, ‘We offend not, because they have sinned against the LORD, the habitation of justice, even the LORD, the hope of their fathers.’ ”
Jeremiah 50:1-7

Israel and Judah are once again joined together as one people.   Israel is back in the Land of God’s promise to them.  The only covenant that will work for them is the covenant made with their Messiah – the Lord Jesus Christ.

There are many Messianic Jews,  They are Jewish people who worship Jesus Christ as their Messiah.

Jesus did not come to earth to only call Israel to repentance, faith, and salvation;  He also came to the whole world.  He came because “God so loved the world, that He gave His only begotten Son.”

Jesus Christ is our forever covenant.  Through Him, and through Him alone is there eternal salvation – salvation from sin and is bondage; salvation from death, and He makes us alive.  This is an everlasting life.