until we come to such unity in our faith and knowledge of God's Son that we will be mature and full grown in the Lord, measuring up to the full stature of Christ.
Then we will no longer be like children, forever changing our minds about what we believe because someone has told us something different or because someone has cleverly lied to us and made the lie sound like the truth.
Instead, we will hold to the truth in love, becoming more and more in every way like Christ, who is the head of his body, the church.
Under his direction, the whole body is fitted together perfectly. As each part does its own special work, it helps the other parts grow, so that the whole body is healthy and growing and full of love.
With the Lord's authority let me say this: Live no longer as the ungodly do, for they are hopelessly confused.
References for Ephesians 4:17
Their closed minds are full of darkness; they are far away from the life of God because they have shut their minds and hardened their hearts against him.
They don't care anymore about right and wrong, and they have given themselves over to immoral ways. Their lives are filled with all kinds of impurity and greed.
But that isn't what you were taught when you learned about Christ.
Since you have heard all about him and have learned the truth that is in Jesus,
throw off your old evil nature and your former way of life, which is rotten through and through, full of lust and deception.
Instead, there must be a spiritual renewal of your thoughts and attitudes.