Which verse is cited to reinforce the doctrine of there being one God?

• A. Deuteronomy 6:4
• B. Matthew 28:19
• C. John 1:14
• D. Colossians 2:9

Answer: (A)

The main idea here is the explicit affirmation of monotheism—the belief that there is only one God. Deuteronomy 6:4 states, “Hear, O Israel: The Lord our God, the Lord is one.” This is the clearest, most direct declaration of God’s oneness, often cited as the foundational monotheistic confession in Scripture. It sets the standard for understanding who God is in a single, indivisible sense, which is exactly what the question is asking to reinforce.

The other verses touch on related aspects of God’s nature or the Godhead but don’t state the oneness as plainly. Matthew 28:19 presents baptism in the name of the Father, Son, and Holy Spirit, which relates to the relationship within the Godhead and has been interpreted in various ways in different traditions. John 1:14 emphasizes that the Word became flesh in Jesus, highlighting the incarnation. Colossians 2:9 speaks of the fullness of deity dwelling in Christ, underscoring Christ’s divinity, but it doesn’t itself declare the oneness of God in the same direct, elementary way as the Shema.

So, Deuteronomy 6:4 is the best verse for reinforcing the doctrine of there being one God.