Only let your manner of life be worthy of the gospel of Christ.
5 Have this mind among yourselves, which is yours in Christ Jesus, 6 who, though he was in the form of God, did not count equality with God a thing to be grasped, 7 but emptied himself, by taking the form of a servant, being born in the likeness of men. 8 And being found in human form, he humbled himself by becoming obedient to the point of death, even death on a cross. – Philippians 2:5-8 (ESV)
9 Therefore God has highly exalted him and bestowed on him the name that is above every name, 10 so that at the name of Jesus every knee should bow, in heaven and on earth and under the earth, 11 and every tongue confess that Jesus Christ is Lord, to the glory of God the Father. – Philippians 2:9-11 (ESV)
The good person out of the good treasure of his heart produces good, and the evil person out of his evil treasure produces evil, for out of the abundance of the heart his mouth speaks. – Luke 6:45 (ESV)
12 Be appalled, O heavens, at this; be shocked, be utterly desolate, declares the Lord, 13 for my people have committed two evils: they have forsaken me, the fountain of living waters, and hewed out cisterns for themselves, broken cisterns that can hold no water. – Jeremiah 2:12-13 (ESV)
“As you go on living this righteous life, and practicing it with all your might and energy, and all your time….you will find that the process that went on before, in which you went from bad to worse and became viler and viler, is entirely reversed. You will become cleaner and cleaner, and purer and purer, and holier and holier and more conformed to the image of the Son of God.” – Martin Lloyd Jones
20 But that is not the way you learned Christ!— 21 assuming that you have heard about him and were taught in him, as the truth is in Jesus, 22 to put off your old self, which belongs to your former manner of life and is corrupt through deceitful desires, 23 and to be renewed in the spirit of your minds, 24 and to put on the new self, created after the likeness of God in true righteousness and holiness. – Ephesians 4:20-24 (ESV)