I love God's promises to the nation of Israel--His people:

"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:
"Only if these decrees vanish from my sight,"
declares the Lord,
"will the descendants of Israel ever cease
to be a nation before me."

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."
Jeremiah 31:35-37

Israel and the Church are separate in the mind of God, and even though we are grafted onto the branch, the tree still stands.