Esther 8:14

So the couriers, who were mounted on the royal relay horses, left quickly, urged on by the king’s command; and the decree was issued at the citadel in Susa [the capital].

1 Samuel 21:8

David said to Ahimelech, “Do you not have a sword or spear here on hand? For I brought neither my sword nor my [other] weapons with me, because the king’s business was urgent.”

Nehemiah 1:1

The words of Nehemiah son of Hacaliah:

Now it happened in the month of Chislev, in the twentieth year [of the Persian king], as I was in the capitol of Susa,

Esther 1:2

in those days when King Ahasuerus sat on his royal throne which was at the citadel in Susa [the capital of the Persian Empire],

Esther 2:3

Let the king appoint administrators in all the provinces of his kingdom, and have them gather all the beautiful young virgins to the citadel in Susa, into the harem, under the custody of Hegai, the king’s eunuch, who is in charge of the women; and let their beauty preparations be given to them.

Esther 3:15

The couriers went out hurriedly by order of the king, and the decree was issued at the citadel in Susa. And while the king and Haman sat down to drink, the city of Susa was perplexed [by the unusual and alarming decree].

Ecclesiastes 9:10

Whatever your hand finds to do, do it with all your might; for there is no activity or planning or knowledge or wisdom in Sheol (the nether world, the place of the dead) where you are going.

Daniel 8:2

I looked in the vision and it seemed that I was at the citadel of Susa, [the capital of Persia], which is in the province of Elam; and I looked in the vision and I saw myself by the Ulai Canal.

Treasury of Scripture Knowledge

Summary

So the posts that rode upon mules and camels went out, being hastened and pressed on by the king's commandment. And the decree was given at Shushan the palace.

Bible References

Being hastened

1 Samuel 21:8
David said to Ahimelech, “Do you not have a sword or spear here on hand? For I brought neither my sword nor my [other] weapons with me, because the king’s business was urgent.”
Ecclesiastes 9:10
Whatever your hand finds to do, do it with all your might; for there is no activity or planning or knowledge or wisdom in Sheol (the nether world, the place of the dead) where you are going.

Shushan

Esther 1:2
in those days when King Ahasuerus sat on his royal throne which was at the citadel in Susa [the capital of the Persian Empire],
Esther 2:3
Let the king appoint administrators in all the provinces of his kingdom, and have them gather all the beautiful young virgins to the citadel in Susa, into the harem, under the custody of Hegai, the king’s eunuch, who is in charge of the women; and let their beauty preparations be given to them.
Esther 3:15
The couriers went out hurriedly by order of the king, and the decree was issued at the citadel in Susa. And while the king and Haman sat down to drink, the city of Susa was perplexed [by the unusual and alarming decree].
Nehemiah 1:1
The words of Nehemiah son of Hacaliah:

Now it happened in the month of Chislev, in the twentieth year [of the Persian king], as I was in the capitol of Susa,
Daniel 8:2
I looked in the vision and it seemed that I was at the citadel of Susa, [the capital of Persia], which is in the province of Elam; and I looked in the vision and I saw myself by the Ulai Canal.