2 Timothy 3:17 (CSB) so that the man of God may be complete, equipped for every good work.

God has set up his words to tech, rebuke, encourage, and train us so that we may be complete. And He will not give up on us until we are complete (Philippians 1:6). The word of God can equip you with everything good to do His will (Hebrews 13:21). Those who are called in Ephesians 4:11-12 are to use their calling to equip the Christians to do the work that they are called to do. They must be in the word to equip them selves to equip others. Otherwise if they try to do it in their own power they may fail and be disqualified (1 Corinthians 9:27). God has a plan for his words and they will not come back to him until they have accomplished everything God sent it out to do (Isaiah 55:11).