One of the great contrasts in Psalm 1 is between the ungodly man whose life shapes his thinking and the blessed man whose thinking shapes his life. The ungodly man makes a menagerie of people his companion, and as he walks with them he joins in their way of life; as he stands with them he identifies with their way of thinking, and as he sits with them he mimics their mockery. He does not think; he does. His doing shapes his thinking. In contrast the man God is blessing makes God's law his only companion. He thinks about it day and night; what he does springs from that, producing fruit. The one lives with the multitude, and so thinks like them. The other thinks with one, and so lives like Him.