Part I: Questions about God, Man, and Sin
6. Q. Are there more gods than one?
A. There is only one God.
(Click through to read scriptural proofs.)
Hear, O Israel: The Lord our God, the Lord is one.
But the Lord is the true God;
he is the living God and the everlasting King.
At his wrath the earth quakes,
and the nations cannot endure his indignation.
Jesus answered, “The most important is, ‘Hear, O Israel: The Lord our God, the Lord is one.
So Paul, standing in the midst of the Areopagus, said: “Men of Athens, I perceive that in every way you are very religious. 23 For as I passed along and observed the objects of your worship, I found also an altar with this inscription, ‘To the unknown god.’ What therefore you worship as unknown, this I proclaim to you. 24 The God who made the world and everything in it, being Lord of heaven and earth, does not live in temples made by man, 25 nor is he served by human hands, as though he needed anything, since he himself gives to all mankind life and breath and everything. 26 And he made from one man every nation of mankind to live on all the face of the earth, having determined allotted periods and the boundaries of their dwelling place, 27 that they should seek God, in the hope that they might feel their way toward him and find him. Yet he is actually not far from each one of us, 28 foras even some of your own poets have said,
29 Being then God’s offspring, we ought not to think that the divine being is like gold or silver or stone, an image formed by the art and imagination of man. 30 The times of ignorance God overlooked, but now he commands all people everywhere to repent, 31 because he has fixed a day on which he will judge the world in righteousness by a man whom he has appointed; and of this he has given assurance to all by raising him from the dead.”
Scripture quoted from the English Standard Version.
Taken from A Catechism for Girls and Boys found here.