Ephesians 4:15-18 New American Standard Bible (NASB)
15 but [a]speaking the truth in love, [b]we are to grow up in all aspects into Him who is the head, even Christ, 16 from whom the whole body, being fitted and held together [c]by what every joint supplies, according to the [d]proper working of each individual part, causes the growth of the body for the building up of itself in love.
The Christian’s Walk
17 So this I say, and affirm together with the Lord, that you walk no longer just as the Gentiles also walk, in the futility of their mind, 18 being darkened in their understanding, [e]excluded from the life of God because of the ignorance that is in them, because of the hardness of their heart;
Ephesians 4:15-18 New International Version (NIV)
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.
Instructions for Christian Living
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.