Thy Sword 
We are writing about God's sword here, the ultimate weapon against which there is no defence. Even Satan, who controls every living person on the face of this earth to a greater or lesser extent has no counter to it, because he, while serving God's purpose, is subject to it and after, for his evil intent, shall be defeated by it. 
We are dealing here with the supernatural resurrection of the Lord Jesus Christ and the power this has in the hands of the faith-full. I know that there is a better place to which I can go, a place without evil, where righteousness prevails. A place in God's presence. 
Whatever Satan's servants can do to my body is temporary because he cannot control my soul unless I allow it. If I resist Satan he shall flee from me, in the name of Christ Jesus whom I serve. 
David, a man after God's own heart, knew of this power. It's uplifting to read his words, but to make the matter a little more realistic, imagine yourself in David's shoes, being hounded and hunted by the government forces of your country and still being able to write such beautiful Psalms. 
*A Prayer of David.*
Hear the right, O LORD, attend unto my cry, give ear unto my prayer, that goeth not out of feigned lips. Let my sentence come forth from thy presence; let thine eyes behold the things that are equal. Thou hast proved mine heart; thou hast visited me in the night; thou hast tried me, and shalt find nothing; I am purposed that my mouth shall not transgress. Concerning the works of men, by the word of thy lips I have kept me from the paths of the destroyer. Hold up my goings in thy paths, that my footsteps slip not. I have called upon thee, for thou wilt hear me, O God: incline thine ear unto me, and hear my speech. Shew thy marvellous lovingkindness, O thou that savest by thy right hand them which put their trust in thee from those that rise up against them. Keep me as the apple of the eye, hide me under the shadow of thy wings, From the wicked that oppress me, from my deadly enemies, who compass me about. They are inclosed in their own fat: with their mouth they speak proudly. They have now compassed us in our steps: they have set their eyes bowing down to the earth; Like as a lion that is greedy of his prey, and as it were a young lion lurking in secret places. Arise, O LORD, disappoint him, cast him down: deliver my soul from the wicked, which is thy sword: From men which are thy hand, O LORD, from men of the world, which have their portion in this life, and whose belly thou fillest with thy hid treasure: they are full of children, and leave the rest of their substance to their babes. As for me, I will behold thy face in righteousness: I shall be satisfied, when I awake, with thy likeness. 
(Psalms 17:1-15)
*To the chief Musician, A Psalm of David, the servant of the LORD, who spake unto the LORD the words of this song in the day that the LORD delivered him from the hand of all his enemies, and from the hand of Saul: And he said,* 
I will love thee, O LORD, my strength. The LORD is my rock, and my fortress, and my deliverer; my God, my strength, in whom I will trust; my buckler, and the horn of my salvation, and my high tower. I will call upon the LORD, who is worthy to be praised: so shall I be saved from mine enemies. The sorrows of death compassed me, and the floods of ungodly men made me afraid. The sorrows of hell compassed me about: the snares of death prevented me. In my distress I called upon the LORD, and cried unto my God: he heard my voice out of his temple, and my cry came before him, even into his ears. 
(Psalms 18:1-6)
He sent from above, he took me, he drew me out of many waters. He delivered me from my strong enemy, and from them which hated me: for they were too strong for me. They prevented me in the day of my calamity: but the LORD was my stay. He brought me forth also into a large place; he delivered me, because he delighted in me. The LORD rewarded me according to my righteousness; according to the cleanness of my hands hath he recompensed me. For I have kept the ways of the LORD, and have not wickedly departed from my God. For all his judgments were before me, and I did not put away his statutes from me. I was also upright before him, and I kept myself from mine iniquity. Therefore hath the LORD recompensed me according to my righteousness, according to the cleanness of my hands in his eyesight. With the merciful thou wilt shew thyself merciful; with an upright man thou wilt shew thyself upright; With the pure thou wilt shew thyself pure; and with the froward thou wilt shew thyself froward. For thou wilt save the afflicted people; but wilt bring down high looks. For thou wilt light my candle: the LORD my God will enlighten my darkness. For by thee I have run through a troop; and by my God have I leaped over a wall. As for God, his way is perfect: the word of the LORD is tried: he is a buckler to all those that trust in him. For who is God save the LORD? or who is a rock save our God? It is God that girdeth me with strength, and maketh my way perfect. He maketh my feet like hinds' feet, and setteth me upon my high places. He teacheth my hands to war, so that a bow of steel is broken by mine arms. Thou hast also given me the shield of thy salvation: and thy right hand hath holden me up, and thy gentleness hath made me great. Thou hast enlarged my steps under me, that my feet did not slip. 
(Psalms 18:16-36)