1 Samuel 17:26-29 Then David spoke to the men who stood by him, saying, “What shall be done for the man who kills this Philistine and takes away the reproach from Israel? For who is this uncircumcised Philistine, that he should defy the armies of the living God?” And the people answered him in this manner, saying, “So shall it be done for the man who kills him.” Now Eliab his oldest brother heard when he spoke to the men; and Eliab’s anger was aroused against David, and he said, “Why did you come down here? And with whom have you left those few sheep in the wilderness? I know your pride and the insolence of your heart, for you have come down to see the battle.” And David said, “What have I done now? Is there not a cause?”
David’s faith and courage in volunteering to fight Goliath were an embarrassment to his big brother Eliab, an officer in King Saul’s army. I imagine his thinking went something like this; “If my little brother wins everybody will ask, ‘How come you didn’t go out and fight him?’” The Bible records that Eliab “burned with anger at David and asked, ‘Why have you come down here? And with whom did you leave those few sheep in the desert? I know how conceited you are and how wicked your heart is…’” These are devastating words from an older brother. Before David could defeat Goliath he first had to overcome the attitudes, accusations, and words, of those close around him.
The defeat of Goliath had massive implications for Israel and for the Lord. Satan had staked a great deal on Goliath’s terrifying power. So wherever the enemy had an opportunity in the sinful attitudes of David’s friends and family he maximized them, realizing that David truly had the anointing of God to turn the tide of battle. And God allowed David to be tested by his own closest kin.
If there is a true Goliath in your life and you are appointed to slay him be assured you will face similar tests from those close by. When you make decisions to step out and follow God it will put pressure on others to do the same. Their shame and lack of faith will move them to attack, belittle and criticize you. It will come from among those closest to you, especially if your calling sets you apart!
Be careful around those who say, “I knew you when…” in an attempt to label, libel, or limit you – much like David’s brother Eliab tried to hinder him. David was empowered by the Lord to slay Goliath – if you have that same Spirit and calling then humbly step aside and say, “What have I done now? Isn’t there a real job to be done?” Then go ahead, and do it.
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[worthy_plugins_devotion_single_body]Isaiah’s vision looks ahead — not only to the Arm of the LORD revealed in the Exodus or even in the cross, but to the day when that same Arm will come again in glory. This is not a picture of brute force but of purposeful arrival. The Z’roah — the Arm of the LORD — comes clothed with strength to establish His rule, and He does not come empty-handed. His reward is with Him, and His work is before Him. The promise is sure: He is coming, and He is rewarding.
Isaiah recalls the Exodus as the supreme display of God’s Z’roah, His Arm of glory. Though the people saw Moses raise his staff over the Red Sea, it was not Moses’ power that split the waters. Behind the prophet’s hand was the Arm of the LORD — majestic, glorious, and unstoppable. The sea parted not to honor Moses, but to exalt the Name of the God who sent him. The Red Sea became a stage for God to reveal His glory, so that His Name would echo through generations as the Deliverer of His people.
Jeremiah uttered these words when everything around him looked hopeless. Babylon’s armies surrounded Jerusalem, the city was on the brink of destruction, and yet God told Jeremiah to buy a field as a prophetic sign that restoration would come. The prophet responded in awe: the God who created the heavens and the earth by His outstretched arm (bizroa netuyah) is not bound by human circumstances. The same God who set galaxies in place and boundaries for the seas is the God who still moves to redeem His people. Truly, nothing is too hard for Him.
Isaiah’s words summon one of the most dramatic images of God’s saving power: the Z’roah — the Arm of the LORD — cutting Rahab in pieces and piercing the dragon.
Here, Rahab is not the woman of Jericho but a poetic name for Egypt (Psalm 87:4), often symbolizing arrogant nations and the dark spiritual powers behind them. In Hebrew poetry, Rahab also evokes the sea monster of chaos, a stand-in for the forces that oppose God’s order. To say the Arm “cut Rahab in pieces” is to recall how God shattered Egypt’s pride and broke the grip of the powers that enslaved His people.
Psalm 98 is a victory psalm — a call to lift up a “new song” because the Z’roah, the holy arm of the LORD, has brought decisive triumph. In Hebrew thought, the arm is the active extension of the will, the power that brings intention into reality. To call it “holy” is to declare that it is set apart, dedicated fully to God’s purpose, incapable of corruption. The psalmist celebrates that salvation is not a hidden act, but an open demonstration — God’s righteousness revealed before the eyes of the nations.
This is one of the most intimate revelations of the Z’roah in Scripture. God looks for a human intercessor but finds none. No man can bridge the gap. So His own Arm accomplishes the work. In Hebrew, v’tosha lo zeroa — “His arm saved for Him” — reveals that salvation originates from within God Himself, not from any outside help. Isaiah adds that His own righteousness sustained Him — it upheld His resolve to save — and His fury upheld Him, a holy passion that would not rest until justice was accomplished.
To “bare” the arm means to roll up the sleeve and reveal the full readiness for action. In Isaiah’s prophecy, this is a global unveiling — no longer hidden, the Z’roah is on display for all nations to witness. This speaks directly of Yeshua’s (Jesus’) public ministry and, ultimately, His crucifixion.