Galatians 3:20

Now an intermediary implies more than one, but God is one.

1 Timothy 2:5

For there is one God, and there is one mediator between God and men, the man Christ Jesus,

Deuteronomy 6:4

"Hear, O Israel: The LORD our God, the LORD is one.

Hebrews 8:6

But as it is, Christ has obtained a ministry that is as much more excellent than the old as the covenant he mediates is better, since it is enacted on better promises.

Hebrews 9:15

Therefore he is the mediator of a new covenant, so that those who are called may receive the promised eternal inheritance, since a death has occurred that redeems them from the transgressions committed under the first covenant.

Hebrews 12:24

and to Jesus, the mediator of a new covenant, and to the sprinkled blood that speaks a better word than the blood of Abel.

Genesis 15:18

On that day the LORD made a covenant with Abram, saying, "To your offspring I give this land, from the river of Egypt to the great river, the river Euphrates,

Genesis 17:1-2

When Abram was ninety-nine years old the LORD appeared to Abram and said to him, "I am God Almighty; walk before me, and be blameless,

Job 9:33

There is no arbiter between us, who might lay his hand on us both.

Acts 12:20

Now Herod was angry with the people of Tyre and Sidon, and they came to him with one accord, and having persuaded Blastus, the king's chamberlain, they asked for peace, because their country depended on the king's country for food.

Romans 3:29-30

Or is God the God of Jews only? Is he not the God of Gentiles also? Yes, of Gentiles also,

Galatians 3:17

This is what I mean: the law, which came years afterward, does not annul a covenant previously ratified by God, so as to make the promise void.

Treasury of Scripture Knowledge

Summary

Now a mediator is not a mediator of one, but God is one.

Bible References

A mediator is

Job 9:33
There is no arbiter between us, who might lay his hand on us both.
Acts 12:20
Now Herod was angry with the people of Tyre and Sidon, and they came to him with one accord, and having persuaded Blastus, the king's chamberlain, they asked for peace, because their country depended on the king's country for food.
1 Timothy 2:5
For there is one God, and there is one mediator between God and men, the man Christ Jesus,

But

Galatians 3:17
This is what I mean: the law, which came years afterward, does not annul a covenant previously ratified by God, so as to make the promise void.
Genesis 15:18
On that day the LORD made a covenant with Abram, saying, "To your offspring I give this land, from the river of Egypt to the great river, the river Euphrates,
Genesis 17:1
When Abram was ninety-nine years old the LORD appeared to Abram and said to him, "I am God Almighty; walk before me, and be blameless,
Deuteronomy 6:4
"Hear, O Israel: The LORD our God, the LORD is one.
Romans 3:29
Or is God the God of Jews only? Is he not the God of Gentiles also? Yes, of Gentiles also,

General references

Deuteronomy 5:3
Not with our fathers did the LORD make this covenant, but with us, who are all of us here alive today.
Romans 3:30
since God is one--who will justify the circumcised by faith and the uncircumcised through faith.
James 2:19
You believe that God is one; you do well. Even the demons believe--and shudder!

The Holy Bible, English Standard Version® copyright © 2001 by Crossway Bibles, a publishing ministry of Good News Publishers.