I think a third temple is a waste of time. As far as that goes, without wishing to be offensive, Israel has served its purpose.
What we see today is a political entity and it has no theocratic authority. The Jews themselves are divided over which form Judaism should take (so what's new?).
This is not what the Scripture teaches.
Paul says this about Jews in Romans 11 28 'As regards the gospel, they are enemies for your sake. But as regards election, they are beloved for the sake of their forefathers.' The Jews are belowed by God.
Israel became God's wife when God made a covenant with them on mount Horeb. Yes, it is true that God has dicorced His wife Israel, but He will take her back. Hosea 2 14 “Therefore, behold, I will allure her,
and bring her into the wilderness,
and speak tenderly to her.
15 And there I will give her her vineyards
and make the Valley of Achor a door of hope.
And there she shall answer as in the days of her youth,
as at the time when she came out of the land of Egypt.
16 “And in that day, declares the Lord, you will call me ‘My Husband,’ and no longer will you call me ‘My Baal.’ 17 For I will remove the names of the Baals from her mouth, and they shall be remembered by name no more. 18 And I will make for them a covenant on that day with the beasts of the field, the birds of the heavens, and the creeping things of the ground. And I will abolish[f] the bow, the sword, and war from the land, and I will make you lie down in safety. 19 And I will betroth you to me forever. I will betroth you to me in righteousness and in justice, in steadfast love and in mercy. 20 I will betroth you to me in faithfulness. And you shall know the Lord.
21 “And in that day I will answer, declares the Lord,
I will answer the heavens,
and they shall answer the earth,
22 and the earth shall answer the grain, the wine, and the oil,
and they shall answer Jezreel,[g]
23 and I will sow her for myself in the land.
And I will have mercy on No Mercy,[h]
and I will say to Not My People,‘You are my people’;
and he shall say, ‘You are my God.’”
Another text where we see God's plan with Israel is in Jeremiah 31 31 “Behold, the days are coming, declares the Lord, when I will make a new covenant with the house of Israel and the house of Judah, 32 not like the covenant that I made with their fathers on the day when I took them by the hand to bring them out of the land of Egypt, my covenant that they broke, though I was their husband, declares the Lord. 33 For this is the covenant that I will make with the house of Israel after those days, declares the Lord: I will put my law within them, and I will write it on their hearts. And I will be their God, and they shall be my people. 34 And no longer shall each one teach his neighbor and each his brother, saying, ‘Know the Lord,’ for they shall all know me, from the least of them to the greatest, declares the Lord. For I will forgive their iniquity, and I will remember their sin no more.”
35 Thus says the Lord,
who gives the sun for light by day
and the fixed order of the moon and the stars for light by night,
who stirs up the sea so that its waves roar—
the Lord of hosts is his name:
36 “If this fixed order departs
from before me, declares the Lord,
then shall the offspring of Israel cease
from being a nation before me forever.”
37 Thus says the Lord:
“If the heavens above can be measured,
and the foundations of the earth below can be explored,
then I will cast off all the offspring of Israel
for all that they have done,
declares the Lord.”
38 “Behold, the days are coming, declares the Lord, when the city shall be rebuilt for the Lord from the Tower of Hananel to the Corner Gate. 39 And the measuring line shall go out farther, straight to the hill Gareb, and shall then turn to Goah. 40 The whole valley of the dead bodies and the ashes, and all the fields as far as the brook Kidron, to the corner of the Horse Gate toward the east, shall be sacred to the Lord. It shall not be plucked up or overthrown anymore forever.”
I never seen a nation, especially this small, be attacked by it's enemies and yet survived. Look what happened in 1948 after Israel was established again. They got attacked by their enemies straight away, despite having almost no army, weak soldiers who just returned from Holocaust, 2 planes and 5 tanks and they then defeated a larger enemy so many times. Even today, they are blessed by God, because He is with them.
The ignorance of some Christians of God's plan for Israel is astonishing. I hear nonsense such as Church replaces Israel all the time. Or rhe Israel today has nothing to do with OT Israel. Nonsense. Jews are supposed to envy Christians. Telling them nonsense like this will never make them envy us, and they will never be interested in the Gospel.