https://youtu.be/FHIkvDMMq2Q?si=GJYkuSaHsKbfVWri
Not useless but fruitful We must turn away from self-sufficiency and replace it with a faith in God that lives out God's principles. Then our activities are not useless but are fruitful - they produce the desired result of shalom(peace). They are fruitful because God is at work in them and through them (Phil. 2:12-13). (Mark D. Futato, "The Book of Psalms")