This post is part of my book launch, God’s Triumphant Mercy: A Reflection of Psalm 51
. . . build up the walls of Jerusalem.
Not only is God the One who works in us “that which is pleasing in his sight, through Jesus Christ” (Heb. 13:21)—doing good to Zion in His good pleasure—He’s also the One who protects us. Left to ourselves, as David probably painfully realized, we’re “prone to wander” and “prone to leave the God I love” (Come, Thou Fount of Every Blessing).
When David asked God to “build up the walls of Jerusalem,” he obviously didn’t mean the literal walls of the literal city. The author of Hebrews wrote that believers “have come to Mount Zion and to the city of the living God, the heavenly Jerusalem” (Heb. 12:22). Paul referred to them as citizens of “the Jerusalem above” (Gal. 4:26). David’s prayer was in relation to God’s protection of His people—walls indicate security.
It is God who protects us from our enemies, both external and internal. There are outside enemies—Satan and his demonic host—who seek to devour us. There’s also an internal enemy, our own flesh, “which wage war against your soul” (1 Peter 2:11). How does God protect us?
Jesus taught this daily prayer: “Lead us not into temptation, but deliver us from evil [from the evil one]” (Matt. 6:13). Prayer is a necessity for God’s protection, as David also exemplified in today’s verse. Jesus also emphasized the need for prayer when He said: “Watch and pray that you may not enter into temptation. The spirit indeed is willing, but the flesh is weak” (Matt. 26:41).
It’s through prayer that we ask God to protect us—build up our walls. He has promised to do so. For example, Paul wrote: “Who will sustain you to the end, guiltless in the day of our Lord Jesus Christ. God is faithful, by whom you were called into the fellowship of His Son, Jesus Christ our Lord” (1 Cor. 1:8-9).
In another letter, Paul wrote: “Now may the God of peace himself sanctify you completely, and may your whole spirit and soul and body be kept blameless at the coming of our Lord Jesus Christ. He who calls you is faithful; he will surely do it” (1 Thess. 5:23-24). That’s why Jesus said: “Fear not, little flock, for it is your Father’s good pleasure to give you the kingdom” (Luke 12:32). He has saved us and He will keep us.
Heavenly Father, keep me by Your grace and power.
The Devotional Writer
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