Psalms 118:27

God is the Lord -Still the language of the priests in their official capacity. The meaning here seems to be “God is Yahweh;” or, Jehovah is the true God. It is an utterance of the priesthood in regard to the great truth which they were appointed specifically to maintain - that Yahweh is the true God, and that he only is to be worshipped. This truth it was appropriate to enunciate on all occasions; and it was especially appropriate to be enunciated when a prince, who had been rescued from danger and death, came, as the restored leader of the people of God, to acknowledge his gracious intervention.