Psa. 1 This Psalm is Christ's separation from the ungodly among the Jews, so the Gentiles are not the prominent objects; in Psa. 2 They are joined. This Psalm therefore is first Christ among the Jews, and secondly Christianity in the world.
The godly Man is isolated, or individualized here; the ungodly looked at in the mass, yet we see it is all of them characteristically, verses 5 and 6.
The Psalm is Jewish blessing in God's righteousness. It also supposes the general influence of the ungodly, and One who has kept aloof from it in the midst of Israel, though there be a general principle. The state of Israel claimed the distinction.
Besides the general truth of the government of God, always essentially the same, we have Jesus, the godly Man, in this Psalm, and His character, viewed of God, being such; for He is seen as responsible Man, who therefore takes the law of Jehovah as His guide; that established—though circumstances may be incomprehensible, the Lord knows and owns His way.