1 Corinthians 8:4

So, as to eating things that have been sacrificed to idols, we are sure that an idol is nothing in the world, and that there is no God but One.

Mark 12:29

Jesus answered, "The first one is, 'Hear, O Israel, the Lord our God is one Lord,

Ephesians 4:6

one God and Father of all, who is over us all, who pervades us all, and who is within us all.

1 Timothy 2:5

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

Jude 1:25

to the only God our Saviour, through Jesus Christ our Lord, be glory, majesty, might, and authority, as it was before all time, both now and forever and ever. Amen.

Acts 14:15

and shouted, "Men, why are you doing this? We are merely men with natures like your own, who are telling you the good news, so that you may turn from these foolish things to the living God, who made heaven and earth and sea and all that they contain.

Acts 19:26

and you see and hear that, not only in Ephesus but all over the province of Asia, this man Paul has led away a vast number of people by persuading them, telling them that gods made by human hands are not gods at all.

1 Corinthians 8:1

Now about the foods that have been sacrificed to idols: We know that every one of us has some knowledge of the matter. Knowledge puffs up, but love builds up.

1 Corinthians 8:6-7

yet for us there is but one God, the Father, who is the source of all things and the goal of our living, and but one Lord, Jesus Christ, through whom everything was made and through whom we live.

1 Corinthians 8:10

For if somebody sees you, who have an intelligent view of this matter, partaking of a meal in an idol's temple, will he not be emboldened, with his overscrupulous conscience, to eat the food which has been sacrificed to an idol?

1 Corinthians 10:19-20

Then what do I mean? That the sacrifice to an idol is a reality, or that an idol itself is a reality? Of course not!

1 Timothy 1:17

To the King eternal, immortal, invisible, the only God, be honor and glory forever and ever! Amen.

Treasury of Scripture Knowledge

Summary

As concerning therefore the eating of those things that are offered in sacrifice unto idols, we know that an idol is nothing in the world, and that there is none other God but one.

General references

Bible References

We know

1 Corinthians 10:19
Then what do I mean? That the sacrifice to an idol is a reality, or that an idol itself is a reality? Of course not!
Acts 19:26
and you see and hear that, not only in Ephesus but all over the province of Asia, this man Paul has led away a vast number of people by persuading them, telling them that gods made by human hands are not gods at all.

There is

1 Corinthians 8:6
yet for us there is but one God, the Father, who is the source of all things and the goal of our living, and but one Lord, Jesus Christ, through whom everything was made and through whom we live.
Mark 12:29
Jesus answered, "The first one is, 'Hear, O Israel, the Lord our God is one Lord,
Ephesians 4:6
one God and Father of all, who is over us all, who pervades us all, and who is within us all.
1 Timothy 1:17
To the King eternal, immortal, invisible, the only God, be honor and glory forever and ever! Amen.
1 Timothy 2:5
For there is but one God and one intermediary between God and men, the man Christ Jesus
Jude 1:25
to the only God our Saviour, through Jesus Christ our Lord, be glory, majesty, might, and authority, as it was before all time, both now and forever and ever. Amen.

General references

James 2:19
Do you believe in one God? Very well; the demons, too, believe that, and shudder.