Catechisma

Q5. Are there more Gods than one?

There is but one only, the living and true God.

Scripture Proofs — King James Version

1

Deuteronomy 6:4

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

Jeremiah 10:10

But the LORD is the true God, he is the living God, and an everlasting king: at his wrath the earth shall tremble, and the nations shall not be able to abide his indignation.

Isaiah 44:6

Thus saith the LORD the King of Israel, and his redeemer the LORD of hosts; I am the first, and I am the last; and beside me there is no God.

CommentaryThomas Vincent (1674)

Question 8. Wherein lyeth the force of this argument to prove from the being of all things, that there is a God?

Answer. All things that have a being, they must either, have their being from eternity; or, 2. Must give a being to themselves. Or, 3. They must have their being from God. But first, they could not have their being from eternity; for then they would be infinite from duration, and so capable of no measure by time; they would be necessary, and so capable of no alteration or destruction: But both reason and experience doth evidence the contrary; therefore they are not eternal.

2. Things cannot give a being to themselves; for that which giveth a being to a thing; must be before it; and hence it would follow, that things should be, and not be at the same time, which is a contradiction and absurd: therefore thirdly, it must necessarily follow, that there is a God, who is a necessary, infinite and eternal being, who is omnipotent, and hath given a being to all creatures.