Genesis 30:4

So she gave him Bilhah her maid as a [secondary] wife, and Jacob went in to her.

Genesis 16:3-4

After Abram had lived in the land of Canaan ten years, Abram’s wife Sarai took Hagar the Egyptian [maid], and gave her to her husband Abram to be his [secondary] wife.

Genesis 21:10

Therefore she said to Abraham, “Drive out this maid and her son, for the son of this maid shall not be an heir with my son Isaac.”

Genesis 22:24

Nahor’s concubine, whose name was Reumah, gave birth to Tebah and Gaham and Tahash and Maacah.

Genesis 25:1

Abraham took another wife, whose name was Keturah.

Genesis 25:6

but to the sons of his concubines [Hagar and Keturah], Abraham gave gifts while he was still living and he sent them to the east country, away from Isaac his son [of promise].

Genesis 33:2

He put the maids and their children in front, Leah and her children after them, and Rachel and Joseph last of all.

Genesis 35:22

While Israel was living in that land, Reuben [his eldest son] went and lay with Bilhah his father’s concubine, and Israel heard about it.

Now Jacob had twelve sons—

2 Samuel 12:11

Thus says the Lord, ‘Behold, I will stir up evil against you from your own household; and I will take your wives before your eyes and give them to your companion, and he will lie with your wives in broad daylight.

Treasury of Scripture Knowledge

Summary

And she gave him Bilhah her handmaid to wife: and Jacob went in unto her.

General references

Bible References

To wife

Genesis 16:3
After Abram had lived in the land of Canaan ten years, Abram’s wife Sarai took Hagar the Egyptian [maid], and gave her to her husband Abram to be his [secondary] wife.
Genesis 21:10
Therefore she said to Abraham, “Drive out this maid and her son, for the son of this maid shall not be an heir with my son Isaac.”
Genesis 22:24
Nahor’s concubine, whose name was Reumah, gave birth to Tebah and Gaham and Tahash and Maacah.
Genesis 25:1
Abraham took another wife, whose name was Keturah.
Genesis 33:2
He put the maids and their children in front, Leah and her children after them, and Rachel and Joseph last of all.
Genesis 35:22
While Israel was living in that land, Reuben [his eldest son] went and lay with Bilhah his father’s concubine, and Israel heard about it.

Now Jacob had twelve sons—
2 Samuel 12:11
Thus says the Lord, ‘Behold, I will stir up evil against you from your own household; and I will take your wives before your eyes and give them to your companion, and he will lie with your wives in broad daylight.

General references

Genesis 35:25
and the sons of Bilhah, Rachel’s maid: Dan and Naphtali;