The foolish (or, the arrogant—"the boasters") shall not stand in thy light. Rather shall they be cast down and dismayed (Psalms 73:3, Psalms 73:18). Thou hatest all workers of iniquity. David has in mind the wicked and presumptuous men who have handed themselves together against him, and "take his contrary part" (Psalms 109:3, Prayer-book Version).
These he is sure that God hates.