Genesis 49:4

Boiling over as water, you shall not excel; because you went up to your father's bed, then defiled it. He went up to my couch.

Genesis 35:22

It happened, while Israel lived in that land, that Reuben went and lay with Bilhah, his father's concubine, and Israel heard of it. Now the sons of Jacob were twelve.

Deuteronomy 27:20

'Cursed is he who lies with his father's wife, because he has uncovered his father's skirt.' All the people shall say, 'Amen.'

1 Chronicles 5:1

The sons of Reuben the firstborn of Israel (for he was the firstborn; but, because he defiled his father's couch, his birthright was given to the sons of Joseph the son of Israel; and the genealogy is not to be reckoned after the birthright.

Genesis 46:8

These are the names of the children of Israel, who came into Egypt, Jacob and his sons: Reuben, Jacob's firstborn.

Numbers 32:1-42

Now the children of Reuben and the children of Gad had a very great multitude of livestock: and when they saw the land of Jazer, and the land of Gilead, that behold, the place was a place for livestock;

Deuteronomy 5:21

"And you shall not desire your neighbor's wife. And neither shall you crave your neighbor's house, his field, or his male servant, or his female servant, his ox, or his donkey, or anything that is your neighbor's."

Deuteronomy 33:6

"Let Reuben live, and not die; Nor let his men be few."

1 Corinthians 5:1

It is actually reported that there is sexual immorality among you, and such sexual immorality as is not even among the Gentiles, that one has his father's wife.

James 1:6-8

But let him ask in faith, without any doubting, for the one who doubts is like a wave of the sea, driven and tossed by the wind.

2 Peter 2:14

having eyes full of adultery, and who cannot cease from sin; enticing unsettled souls; having a heart trained in greed; children of cursing;

2 Peter 3:16

as also in all of his letters, speaking in them of these things. In those, there are some things that are hard to understand, which the ignorant and unsettled twist, as they also do to the other Scriptures, to their own destruction.

Treasury of Scripture Knowledge

Summary

Unstable as water, thou shalt not excel; because thou wentest up to thy father's bed; then defiledst thou it: he went up to my couch.

Thou shalt not excel

Bible References

Unstable

James 1:6
But let him ask in faith, without any doubting, for the one who doubts is like a wave of the sea, driven and tossed by the wind.
2 Peter 2:14
having eyes full of adultery, and who cannot cease from sin; enticing unsettled souls; having a heart trained in greed; children of cursing;
2 Peter 3:16
as also in all of his letters, speaking in them of these things. In those, there are some things that are hard to understand, which the ignorant and unsettled twist, as they also do to the other Scriptures, to their own destruction.

Thou shalt not excel

Genesis 46:8
These are the names of the children of Israel, who came into Egypt, Jacob and his sons: Reuben, Jacob's firstborn.
Deuteronomy 33:6
"Let Reuben live, and not die; Nor let his men be few."

Because

Genesis 35:22
It happened, while Israel lived in that land, that Reuben went and lay with Bilhah, his father's concubine, and Israel heard of it. Now the sons of Jacob were twelve.
Deuteronomy 5:21
"And you shall not desire your neighbor's wife. And neither shall you crave your neighbor's house, his field, or his male servant, or his female servant, his ox, or his donkey, or anything that is your neighbor's."
Deuteronomy 27:20
'Cursed is he who lies with his father's wife, because he has uncovered his father's skirt.' All the people shall say, 'Amen.'
1 Chronicles 5:1
The sons of Reuben the firstborn of Israel (for he was the firstborn; but, because he defiled his father's couch, his birthright was given to the sons of Joseph the son of Israel; and the genealogy is not to be reckoned after the birthright.
1 Corinthians 5:1
It is actually reported that there is sexual immorality among you, and such sexual immorality as is not even among the Gentiles, that one has his father's wife.

General references

Leviticus 18:8
"'You shall not uncover the nakedness of your father's wife: it is your father's nakedness.
Numbers 1:20
The children of Reuben, Israel's firstborn, their generations, by their families, by their fathers' houses, according to the number of the names, one by one, every male from twenty years old and upward, all who were able to go out to war;
Deuteronomy 27:20
'Cursed is he who lies with his father's wife, because he has uncovered his father's skirt.' All the people shall say, 'Amen.'
Deuteronomy 33:6
"Let Reuben live, and not die; Nor let his men be few."