And for all you do, God must be your strength. Jesus says in John 15:5 that apart from Him we can do nothing. Psalm 33:16-17 and Hosea 14:6 similarly affirm that none of our efforts are sufficient. No matter how hard we work, without the Lord it all profits nothing. With the Lord, when you've done what He calls you to do, you can rest, knowing you're approved by Him, not approved for the success of your effort. So rest, daughter/son of God, knowing you are cherished by your Father.