A compound verb indicating additional need or requirement beyond what might be expected. Classical usage included needing something more or requiring further assistance. Paul uses it in Acts 17:25 to declare that God is not served by human hands as though needing anything—he doesn't require our service to supply some lack in himself. The participle with negative emphasizes divine self-sufficiency: God needs nothing additional from us, no supplemental help to sustain his existence or accomplish his purposes.