John 17:3
Now eternal life means knowing you as the only true God and knowing Jesus your messenger as Christ.
Mark 12:29-32
Jesus answered, "The first one is, 'Hear, O Israel, the Lord our God is one Lord,
1 Timothy 2:5
For there is but one God and one intermediary between God and men, the man Christ Jesus
John 10:30
The Father and I are one."
1 Corinthians 8:4-6
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.
Treasury of Scripture Knowledge
Bible References
General references
James 2:19
Do you believe in one God? Very well; the demons, too, believe that, and shudder.