Ephesians 4:17-24 NLT
 With the Lord’s authority I say this: Live no longer as the Gentiles do, for they are hopelessly confused.  Their minds are full of darkness; they wander far from the life God gives because they have closed their minds and hardened their hearts against him.  They have no sense of shame. They live for lustful pleasure and eagerly practice every kind of impurity.  But that isn’t what you learned about Christ.  Since you have heard about Jesus and have learned the truth that comes from him,  throw off your old sinful nature and your former way of life, which is corrupted by lust and deception.  Instead, let the Spirit renew your thoughts and attitudes.  Put on your new nature, created to be like God-truly righteous and holy.
Let the Spirit renew your thoughts and attitudes. This verse implies that we need to be in tune with the Spirit of God.
We are to pursue righteousness and holiness. That means we must invest time in God’s Word, in prayer and communion with Him. Romans 12:2 is essential for us to keep in mind — Transformation comes through the renewing of our minds. Our minds must be renewed, challenged and made new in order to be led by the Spirit of God.