Ps 1 2 But his delight is in the law of the LORD,
and on his law he meditates day and night.
3 He is like a tree planted by streams of water,
which yields its fruit in season
and whose leaf does not wither.
Whatever he does prospers."

The Psalmist teaches when man is born in sin, he attempts to eliminate God in describing the origins of the universe and the moral responsibility each man has in the culture. When we are born again we are part of the renewal of all things. The Psalmist is comparing the renewed man with the man of destruction. Because of the sin of Adam the world has become a place where God is devalued so that man becomes destructive in his relationship to the creation and to his neighbor. Just as man has been alienated from God so to he has been separated from the moral compass in the value of Gods order in creation and recreation.
In describing the works of God the Psalmist teaches that understanding the order of creation is essential in understanding ones self. This is why he is always comparing the miracles of God with His work in the order and value of creation. In other words a man who is blind and dead in his sins is not only alienated from God but he does not understand the true value and order in relation to the things of creation and how they are applied to the healing of mankind. In this first Psalm the man of God is described in the unity of Gods order of creation. The tree gets its sustenance from the streams, it grows down in the deep roots of the soil, it yields fruit, and is not part of the destruction or curse that sin has brought into the world.In other words he describes the unity of all things in both positive and negative terms. Yeilds its fruit and leaf does not wither.
But the wicked cannot escape the cell of destruction. They are like worthless twigs that dry up and blow in the winds.He is teaching that the two descriptions of mankind are not explained from both ends, going out from the beginning of salvation and coming back from the end , or as the reformers teach that both the production of justification and the commands of sanctification are the same. But the Psalmist teaches that true gospel freedom is pronouncing the positive which is the blessing (the axiom controls the responsible choice-whatever he does prospers) and the negative which is the cursing teaches us the purpose of the law and the true expression of human inability. In pronouncing the gifts we are going beyond our understanding of the judgement, and exceeding our understanding of the blessing. We are growing in our image reordering thoughts from the pragmatism of contradictions and back to the reality of man ruling over himself and creation. In our pronouncing we are more and more connecting ourselves to the unity of creation.