Psalms 67:3-5

Verse 3

Let the people praise thee - When this is done, the people - the Gentiles, will praise thee; all will give thanks to God for his unspeakable gift.
Verse 4

Glad and sing for joy - They shall be made happy in thy salvation. Even their political state shall be greatly meliorated; for God will be acknowledged the supreme Judge; their laws shall be founded on his word; and the nations of the earth shall be governed according to judgment, justice, and equity.

Selah - This is true. There are innumerable facts to confirm it. All the nations who have received the Gospel of Christ have been benefited politically, as well as spiritually, by it.
Verse 5

Let the people praise thee - Seeing the abundance of the blessings which the Gentiles were to receive, he calls again and again upon them to magnify God for such mercies.
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