13. until we all reach unity in the faith and in the knowledge of the Son of God and become mature, attaining to the whole measure of the fullness of Christ.
14. Then we will no longer be infants, tossed back and forth by the waves, and blown here and there by every wind of teaching and by the cunning and craftiness of people in their deceitful scheming.
15. Instead, speaking the truth in love, we will grow to become in every respect the mature body of him who is the head, that is, Christ.
16. From him the whole body, joined and held together by every supporting ligament, grows and builds itself up in love, as each part does its work.
17. So I tell you this, and insist on it in the Lord, that you must no longer live as the Gentiles do, in the futility of their thinking.
18. They are darkened in their understanding and separated from the life of God because of the ignorance that is in them due to the hardening of their hearts.