Joshua 17:1

And the tribe of Manasseh which was the eldest son of Joseph received a lot. And Machir, the eldest son of Manasseh, which was the father of Gilead and a man of war, had Gilead and Bashan.

Genesis 41:51

And he called the name of the first son Manasseh, "For God," said he, "hath made me forget all my labour and all my father's household."

Numbers 26:29

The children of Manasseh: Machir, of whom cometh the kindred of the Machirites. And Machir begat Gilead, of whom cometh the kindred of the Gileadites.

Genesis 46:20

And unto Joseph in the land of Egypt were borne: Manasseh and Ephraim which Asenath the daughter of Poti-Pherah priest of On bare unto him.

Genesis 50:23

And Joseph saw Ephraim's children, even unto the third generation. And unto Machir the son of Manasseh were children born, and sat on Joseph's knees.

Genesis 48:18

and said unto his father, "Not so my father, for this is the eldest. Put thy righthand upon his head."

Numbers 32:39-40

And the children of Machir the son of Manasseh went to Gilead and took it, and put out the Amorites that were therein.

Numbers 27:1

And the daughters of Zelophehad, the son of Heber the son of Gilead, the son of Machir the son of Manasseh, of the kindreds of Manasseh the son of Joseph - whose names were Mahlah, Noah, Hoglah, Milcah and Tirzah -

Numbers 32:33

And Moses gave unto the children of Gad and of Reuben, and unto the half tribe of Manasseh the son of Joseph, the kingdom of Sihon king of the Amorites, and the kingdom of Og king of Bashan, the land that belonged unto the cities thereof in the coasts of the country round about.

Deuteronomy 3:13-15

And the rest of Gilead and all Bashan the kingdom of Og, I gave unto the half tribe of Manasseh: all the region of Argob with all Bashan was called the land of Giants.

Deuteronomy 21:17

But he shall know the son of the hated for his firstborn, that he give him double of all that he hath. For he is the first of his strength, and to him belongeth the right of the firstbornship.

Judges 5:14

Ephraim was the first against Amalek, and after them Benjamin, among the people. Of Machir came learned men in the law, and of Zebulun that well could draw with the pen of a scribe.

1 Chronicles 2:23

And he overcame the Geshurites and the Aramites, and took the towns of Jair from them, and Kenath with the towns that belonged to the same, even three score towns. All these were the sons of Machir the father of Gilead.

1 Chronicles 7:14-15

The sons of Manasseh: Asriel which Aramea his concubine bare: she bare also Machir the father of Gilead.

Treasury of Scripture Knowledge

Summary

There was also a lot for the tribe of Manasseh; for he was the firstborn of Joseph; to wit, for Machir the firstborn of Manasseh, the father of Gilead: because he was a man of war, therefore he had Gilead and Bashan.

General references

Bible References

The firstborn

Genesis 41:51
And he called the name of the first son Manasseh, "For God," said he, "hath made me forget all my labour and all my father's household."
Genesis 46:20
And unto Joseph in the land of Egypt were borne: Manasseh and Ephraim which Asenath the daughter of Poti-Pherah priest of On bare unto him.
Genesis 48:18
and said unto his father, "Not so my father, for this is the eldest. Put thy righthand upon his head."
Deuteronomy 21:17
But he shall know the son of the hated for his firstborn, that he give him double of all that he hath. For he is the first of his strength, and to him belongeth the right of the firstbornship.

General references

Numbers 32:39
And the children of Machir the son of Manasseh went to Gilead and took it, and put out the Amorites that were therein.