Isaiah 55:11 Meaning: Commentary on an Important Scripture

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Lord’s Library editors offer an Isaiah 55:11 meaning with commentary and supporting Scriptures for your edification.

Isaiah 55:11 is a profound verse that reveals the power and purpose of God’s Word. It states, “So shall my word be that goeth forth out of my mouth: it shall not return unto me void, but it shall accomplish that which I please, and it shall prosper in the thing whereto I sent it.” From the fundamental Christian perspective, this verse emphasizes the certainty and effectiveness of God’s Word in fulfilling His will. Unlike human words, which can often fall short or fail, God’s Word is living, active, and always achieves the purpose for which it is spoken.

The power of God’s Word is reiterated throughout Scripture. Hebrews 4:12 says, “For the word of God is quick, and powerful, and sharper than any two-edged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart.” This underscores the idea that God’s Word is not only effective but also transformative. It penetrates the deepest parts of human nature, bringing conviction, correction, and guidance.

Furthermore, the assurance that God’s Word will not return void is a promise that His plans and purposes will prevail. In Numbers 23:19, we read, “God is not a man, that he should lie; neither the son of man, that he should repent: hath he said, and shall he not do it? or hath he spoken, and shall he not make it good?” This reinforces the truth that God’s Word is always reliable. When He speaks, it will come to pass, whether in creation, as seen in Genesis 1, or in His promises and prophecies.

Isaiah 55:11 also aligns with Romans 10:17, which declares, “So then faith cometh by hearing, and hearing by the word of God.” God’s Word is the foundation for faith, and as it goes forth, it accomplishes the work of building faith in those who hear and receive it. Christians are encouraged to trust that God’s Word, when spoken or shared, will bear fruit in due time, even when the immediate results are not visible.

In essence, Isaiah 55:11 reminds believers of the absolute sovereignty of God’s Word. It affirms that His promises are sure, His plans are unfailing, and His Word is the very agent by which His will is done on earth.


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Timothy Andrew

Tim is the Founder of Lord's Library. He believes the Bible commands us to minister "as of the ability which God giveth" (1 Peter 4:11). Tim aspires to be as The Lord's mouth by "taking forth the precious from the vile" (Jeremiah 15:19) and witnessing The Gospel of Jesus Christ (1 Corinthians 15: 1-4) to the whole world.

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