Direct Answer
The speaker’s point is that God’s love and willingness are not the barrier—our uncleanness is—so the healthier instinct is “I must be cleansed,” not “God must be persuaded.” If you live as though God must be persuaded, prayer becomes bargaining and repentance becomes optional; if you accept cleansing as the issue, prayer turns into humble drawing near and ongoing sin becomes something to fight and wash away.