<p>6:13 <i>Therefore put on the full armour of God, so that when the day of evil comes, you may be able to withstand it; and after you have done everything, to stand firm</i>- See on :12. Protection against spiritual destruction was not therefore simply in their own strength; they were to put on God's defences. Once they had done all they humanly could, the Divine defence would operate. The same idea is found in :17. It is this huge spiritual power which enables us, as David against Goliath, to successfully &quot;withstand&quot; evil. The same word is used in teaching that we are not to resist evil in physical, secular terms (Mt. 5:39). We are to resist evil- but in spiritual terms. I explained on :12 that the evil in view was the power of Judaism seeking to destroy Christianity in league with the Roman authorities. The same word for &quot;withstand&quot;, often translated &quot;resist&quot;, is used of how the Gospel of grace was resisted by Judaists and Romans (Acts 13:8; 2 Tim. 3:8; 4:15), but the power of the Christian defence / resistance could not be 'withstood' (Lk. 21:15; Acts 6:10; Gal. 2:11; 1 Pet. 5:9). We in our last days face a final time of evil which shall swamp the believers unless they are armed with God's defences, which basically refer in various forms to &quot;the Spirit&quot;. The armour described is all defensive; the peace of God (surely a reference to the Spirit) keeps hearts and minds in Christ (Phil. 4:7).&nbsp;</p>