Job 19:24

That with an iron pen and lead They were graven in the rock for ever!

Jeremiah 17:1

The sin of Judah is written with a pen of iron, and with the point of a diamond: it is graven upon the tablet of their heart, and upon the horns of your altars;

Exodus 28:11-12

With the work of an engraver in stone, like the engravings of a signet, shalt thou engrave the two stones, according to the names of the children of Israel: thou shalt make them to be inclosed in settings of gold.

Exodus 28:21

And the stones shall be according to the names of the children of Israel, twelve, according to their names; like the engravings of a signet, every one according to his name, they shall be for the twelve tribes.

Exodus 32:16

And the tables were the work of God, and the writing was the writing of God, graven upon the tables.

Deuteronomy 27:2-3

And it shall be on the day when ye shall pass over the Jordan unto the land which Jehovah thy God giveth thee, that thou shalt set thee up great stones, and plaster them with plaster:

Deuteronomy 27:8

And thou shalt write upon the stones all the words of this law very plainly.

Treasury of Scripture Knowledge

Summary

That they were graven with an iron pen and lead in the rock for ever!

General references

Bible References

Graven

Exodus 28:11
With the work of an engraver in stone, like the engravings of a signet, shalt thou engrave the two stones, according to the names of the children of Israel: thou shalt make them to be inclosed in settings of gold.
Exodus 32:16
And the tables were the work of God, and the writing was the writing of God, graven upon the tables.
Deuteronomy 27:2
And it shall be on the day when ye shall pass over the Jordan unto the land which Jehovah thy God giveth thee, that thou shalt set thee up great stones, and plaster them with plaster:
Jeremiah 17:1
The sin of Judah is written with a pen of iron, and with the point of a diamond: it is graven upon the tablet of their heart, and upon the horns of your altars;

General references

Deuteronomy 6:9
And thou shalt write them upon the door-posts of thy house, and upon thy gates.
Jeremiah 30:2
Thus speaketh Jehovah, the God of Israel, saying, Write thee all the words that I have spoken unto thee in a book.

American Standard Version Public Domain