教会作神的战士，不是凭自己的力量争战。以弗所六章十节说，“末了的话，你们要在主里，靠着祂力量的权能，得着加力。”这一节清楚指明，我们不该靠着自己的力量争战。相反的，我们必须在主里，靠着祂力量的权能，得着加力。“得着加力”的原文与一章十九节的“能力”同字根。要对付神的仇敌，抵挡黑暗的邪恶势力，我们需要那叫基督从死人中复活，并叫祂坐在诸天界里，远超空中一切邪灵的浩大能力，使我们得着加力。在对付撒但和他邪恶国度的属灵争战中，我们只能在主里面争战，不能在自己里面争战。何时我们在自己里面，我们就失败了。
穿上基督作军装
按照以弗所六章，满带权能的主就是我们所穿上作我们保护的军装。这意思是说，我们既是基督的身体，就需要穿上基督自己作我们的军装。要打属灵的仗，我们必须有基督作神全副的军装。
六章十四至十七节里有基督作为军装的六面：真理（或实际）的腰带、义的胸甲、和平福音的稳固根基（鞋）、信的盾牌、救恩的头盔、以及那灵的剑。所以，神全副的军装包括腰带、胸甲、鞋、盾牌、头盔和剑。盾牌是为着防卫，而剑是为着攻击。事实上，剑是军装中惟一用作攻击的装备。
藉着祷告应用军装
按照十七节，我们是藉着各样的祷告和祈求，接受救恩的头盔，并那灵的剑。事实上，祷告乃是我们接受神全副军装所有六项的凭借。你知道如何应用实际的腰带么？乃是藉着在灵里的祷告。祷告也是我们应用胸甲、鞋、盾牌、头盔和剑的路。
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Empowered in the Lord – Eph. 6:11
As God’s warrior, the church does not fight by her own strength. Ephesians 6:10 says, “For the rest, be empowered in the Lord and in the might of His strength.” This verse indicates clearly that we should not fight in our own strength. On the contrary, we must be empowered in the Lord and in the might of His strength. The Greek word rendered “empowered” has the same root as the word power in 1:19. To deal with God’s enemy, to fight against the evil forces of darkness, we need to be empowered with the greatness of the power that raised Christ from the dead and seated Him in the heavens, far above all the evil spirits in the air. In the spiritual warfare against Satan and his evil kingdom, we can fight only in the Lord, not in ourselves. Whenever we are in ourselves, we are defeated.
Put on Christ as the Armor
According to Ephesians 6, the Lord with His might is the very armor that we put on for our protection. This means that we, as the Body, need to put on Christ Himself as our armor. In order to fight in spiritual warfare, we must have Christ as the whole armor of God.
In 6:14-17 there are six aspects of Christ as armor: the girdle of truth, or reality; the breastplate of righteousness; the firm foundation of the gospel of peace (the shoes); the shield of faith; the helmet of salvation; and the sword of the Spirit. Therefore, the whole armor of God consists of the girdle, the breastplate, the shoes, the shield, the helmet and the sword. The shield is for defense, whereas the sword is for offense. In fact, the sword is the only item of the armor that is for offensive warfare.
Applying the Armor by Prayer
According to verse 18, we receive the helmet of salvation and the sword of the Spirit by means of all prayer and petition. Actually, prayer is the means by which we receive all the aspects of the whole armor of God. Do you know how to apply the girdle of reality? It is by praying in spirit. Prayer is also the way to apply the breastplate, the shoes, the shield, the helmet and the sword.