“But thou, O LORD, art a shield for me; my glory, and the lifter up of mine head.” (Psalm 3:3)
The beautiful metaphor of God as our shield, and our protector from evil, is used over 15 times in the book of Psalms, the first being in our text above. The very first time it is used in the Bible, however, is also the first time the word “shield” itself is used. That was the time when God assured Abram, after his battle with the armies of the northern kings: “Fear not, Abram: I am thy shield” (Genesis 15:1). This was a great comfort to Abram, there in the land of the Canaanites, where evil and enemies surrounded him on all sides.
But consider also a few of the many “shield” promises in the book of Psalms. One of the most beautiful and most uplifting is Psalm 84:11: “For the LORD God is a sun and shield: the Lord will give grace and glory: no good thing will he withhold from them that walk uprightly.”
And consider also this wonderful promise: “As for God, his way is perfect: the word of the Lord is tried: he is a buckler [same word] to all those that trust in him” (Psalm 18:30). In the same psalm appears this great testimony: “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” (Psalm 18:35).
Three times in Psalm 115 appears the injunction to “trust in the Lord: he is their help and their shield” (Psalm 115:9-11). Similarly, “thou art my hiding place and my shield: I hope in thy word” (Psalm 119:114).
The final reference in Psalms to the Lord as our shield is “Blessed be the LORD my strength. . . . My goodness, and my fortress; my high tower, and my deliverer; my shield, and he in whom I trust; who subdueth my people under me” (Psalm 144:1-2). HMM