Charles H. Spurgeon on Psalms 67:3

This verse is exceedingly emphatic.

1. First, by an apostrophe to God, in the pronoun, Thee. As if he said: Let the people praise thee, not strange gods; for thou art the only true God.

2. Secondly, inasmuch as it is not said, Let us praise thee, O God; but let the people praise thee, and let all the people. For here is expressed the longing of the pious heart, and its fond desire that God should be praised and magnified throughout all lands and by all people of the round earth.

3. Thirdly, by the iteration, in which the same particle is repeated in this and the fifth verse no less than four times, as if the duty could not be sufficiently inculcated. It is not enough to have said it once; it is delightful to repeat it again. Wolfgang Musculus (1497-1563).