One example could be considered using the Old covenant versus the New covenant in face of narratives that states God doesn't change. If anybody has any inkling what the Old and New testaments are in regards to God, you will quickly realize that it is not the same theme by any stretch of the imagination.
The Old Testament serves the foundation and the prophecies about God's promise about Christ.
It is about God's covenant with the Israelites, not with any other race or with any other nation but Israel.
Well, what about other nations and races? God has chosen Israel to be His.
Deuteronomy 7:6-8 New International Version (NIV)
For you are a people holy to the Lord your God.
The Lord your God has chosen you out of all the peoples on the face of the earth to be his people, his treasured possession.
The Lord did not set his affection on you and choose you because you were more numerous than other peoples, for you were the fewest of all peoples. But
it was because the Lord loved you and kept the oath he swore to your ancestors that he brought you out with a mighty hand and redeemed you from the land of slavery, from the power of Pharaoh king of Egypt.
And what was that you say? God doesn't change - and indeed God didn't.
But people changed and when people change what happens to the covenant [the agreement]?
Then there is a need for a new covenant because Israel was unfaithful
And this fact is written in the Bible:
Jeremiah 31:31-32 New International Version (NIV)
“The days are coming,” declares the Lord,
“when
I will make a new covenant
with the people of Israel
and with the people of Judah.
It will not be like the covenant
I made with their ancestors
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.
That new covenant was declared by the Lord Jesus Christ on the holy supper with his apostles.
Luke 22:20 New International Version (NIV)
In the same way, after the supper he took the cup, saying, “This cup is
the new covenant in my blood, which is poured out for you.
So "the theme" is still there, there is continuity, as reflected in Hebrews 8:
Hebrews 8:8-13 New International Version (NIV)
But God found fault with the people and said:
“The days are coming, declares the Lord,
when I will make a new covenant
with the people of Israel
and with the people of Judah.
It will not be like the covenant
I made with their ancestors
when I took them by the hand
to lead them out of Egypt,
because they did not remain faithful to my covenant,
and I turned away from them,
declares the Lord.
This is the covenant I will establish with the people of Israel
after that time, declares the Lord.
I will put my laws in their minds
and write them on their hearts.
I will be their God,
and they will be my people.
No longer will they teach their neighbor,
or say to one another, ‘Know the Lord,’
because they will all know me,
from the least of them to the greatest.
For I will forgive their wickedness
and will remember their sins no more.”
By calling this covenant “new,” he has made the first one obsolete; and what is obsolete and outdated will soon disappear.