Passage
Fear not, thou worm Jacob, ye men of Israel; I will help thee, saith Jehovah, and thy Redeemer, the Holy One of Israel.
Fear not, thou worm Jacob, ye men of Israel; I will help thee, saith Jehovah, and thy Redeemer, the Holy One of Israel.
Isaiah 41:12 Thou shalt seek them, and shalt not find them them that contend with thee; they that war against thee shall be as nothing, and as a thing of nought.
Isaiah 41:13 For I, Jehovah, thy God, hold thy right hand, saying unto thee, Fear not; I will help thee.
Isaiah 41:14 Fear not, thou worm Jacob, ye men of Israel; I will help thee, saith Jehovah, and thy Redeemer, the Holy One of Israel.
Isaiah 41:15 Behold, I have made of thee a new sharp threshing instrument having double teeth: thou shalt thresh and beat small the mountains, and shalt make the hills as chaff;
Isaiah 41:16 thou shalt fan them, and the wind shall carry them away, and the whirlwind shall scatter them; and thou shalt rejoice in Jehovah, thou shalt glory in the Holy One of Israel.
The verse centers on "fear", "thou", "worm", "jacob", "israel", "help", "thee", and "saith". It is saying that the verse draws attention to "fear" and "thou", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 13's "For I Jehovah thy God hold thy..." into verse 15's "Behold I have made of thee a...", so "fear" and "thou" belong inside that flow. In Isaiah context, the local focus is the Holy One of Israel, judgment and restoration, the servant of the LORD, and Zion's hope.
A plain takeaway is to answer the verse's own emphasis on "fear" and "thou" with trust shaped by these words, not by a vague optimism outside the passage.