Daniel 6:12

Then they came near before the king and said, O King, have you not put your name to an order that any man who makes a request to any god or man but you, O King, for thirty days, is to be put into the lions' hole? The king made answer and said, The thing is fixed by the law of the Medes and Persians which may not come to an end.

Daniel 6:8

Now, O King, put the order in force, signing the writing so that it may not be changed, like the law of the Medes and Persians which may not come to an end.

Esther 1:19

If it is pleasing to the king, let an order go out from him, and let it be recorded among the laws of the Persians and the Medes, so that it may never be changed, that Vashti is never again to come before King Ahasuerus; and let the king give her place to another who is better than she.

Daniel 3:8-12

At that time certain Chaldaeans came near and made a statement against the Jews.

Acts 16:19

But when her masters saw that their hope of profit was gone, they took Paul and Silas, pulling them into the market-place before the rulers;

Acts 16:24

And he, having such orders, put them into the inner prison with chains on their feet.

Acts 24:2-9

And when he had been sent for, Tertullus, starting his statement, said, Because by you we are living in peace, and through your wisdom wrongs are put right for this nation,

Treasury of Scripture Knowledge

Summary

Then they came near, and spake before the king concerning the king's decree; Hast thou not signed a decree, that every man that shall ask a petition of any God or man within thirty days, save of thee, O king, shall be cast into the den of lions? The king answered and said, The thing is true, according to the law of the Medes and Persians, which altereth not.

Bible References

They

Daniel 3:8
At that time certain Chaldaeans came near and made a statement against the Jews.
Acts 16:19
But when her masters saw that their hope of profit was gone, they took Paul and Silas, pulling them into the market-place before the rulers;
Acts 24:2
And when he had been sent for, Tertullus, starting his statement, said, Because by you we are living in peace, and through your wisdom wrongs are put right for this nation,

The thing

Daniel 6:8
Now, O King, put the order in force, signing the writing so that it may not be changed, like the law of the Medes and Persians which may not come to an end.
Esther 1:19
If it is pleasing to the king, let an order go out from him, and let it be recorded among the laws of the Persians and the Medes, so that it may never be changed, that Vashti is never again to come before King Ahasuerus; and let the king give her place to another who is better than she.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain