Charles H. Spurgeon on Psalms 67:2

That thy way may be known, etc. As light, so the participation of God's light is communicative: we must not pray for ourselves alone, but for all others, that God's way may be known upon earth, and his saving health among all nations. Thy way; that is, thy will, thy word, thy works. God's will must be known on earth, that it may be done on earth, as it is in heaven. Except we know our Master's will, how shall we do it? Ergo, first pray with David here: Let the nations be glad and sing for joy: for thou shalt judge the people righteously, and govern the nations upon earth; and then, Let all the people praise thee. God's will is revealed in his word, and his word is his way wherein we must walk, turning neither to the right hand nor to the left. Or, Thy way; that is, thy works, as David elsewhere (Ps 25:10): "All thy ways of the Lord are mercy and truth." Or, as others (Augustine; Jerome; Hilary) most fitly: Thy way, that is, thy Christ; "Thy saving health, "that is, thy Jesus: for "I am the way, "saith our Saviour (Joh 14:6): "No man cometh unto the Father, but by me; " wherefore, "Let thy Son be known upon earth; thy Jesus among all nations." John Boys.