That thy way may be known— That is, that all the world may be sensible of the truth of the Jewish religion; and expect no blessing, but from the supreme God of the Jews. Thy saving health, or salvation, refers to the glad tidings of salvation through Christ. The Syriac version, in its preface to this psalm, says, "It gives us a prophesy of the calling of the Gentiles, and the preaching of the Apostles." Theodoret thinks the same.
Related Commentaries of Psalms 67:2
Psalms 67:2
2 That thy way may be known upon earth, thy saving health among all nations.