9. What spiritual armor do we need in order to combat materialistic inclinations, and how can this armor protect us?

⁹ In our fight to keep wicked spirits from cultivating in us materialistic inclinations, we need armor, spiritual armor. We need to have on “the breastplate of RIGHTEOUSNESS,” which means we must do what is right in God’s sight. (Ephesians 6:13, 14)

Practically everywhere today the wicked spirits have succeeded in creating an environment, as well as situations, wherein Christians are tempted into having sexual relations outside the marriage arrangement. What armor will help us fight this attack of wicked spirits?

13. How did Joseph show that he had on “the breastplate of righteousness”?

¹³ Having on “the breastplate of righteousness” is vital. We need to be determined at all times to do what Jehovah says is right. (1 Corinthians 6:18) Joseph had on this armor. When the sex-mad wife of Potiphar kept begging him day after day, “Lie down with me,” Joseph said: “How could I commit this great badness and actually sin against God?” (Genesis 39:7-12) As did Joseph, we also need to think of the consequences of engaging in the immoral conduct that our ‘treacherous heart’ may desire.​—Jeremiah 17:9.

14. What should we consider that will help us to avoid becoming involved in sexual immorality?

¹⁴ First, we should consider how God is affected if we break his law. Satan has taunted Jehovah, claiming that under test humans will not be faithful to Him. So Jehovah urges: “Be wise, my son, and make my heart rejoice, that I may make a reply to him that is taunting me.” (Proverbs 27:11) Think about it: Will you break God’s law and make Satan glad and God sad? (Psalm 78:38-41) If you really love Jehovah, how could you do such a thing? Consider, too, what is the wise thing to do. Only Jehovah can give you everlasting life. So is it not wise to do his will?​—1 John 5:3; Romans 6:23.