Isaiah 40:21 (KJV)

What does Isaiah 40:21 mean?

Isaiah 40:21 challenges the listeners by asking if they have not already known, heard, or been told from the very beginning about God’s power and role as Creator. The verse calls people to remember what has been revealed about God since the world’s foundations were laid.

The prophet Isaiah is speaking to the people of Israel, many of whom are discouraged and questioning God’s involvement in their lives. Isaiah uses a series of questions to remind them that the truth about God’s greatness and authority has always been available, going back to the earliest days of creation. The verse encourages the audience to recall what they have learned and understood about God’s nature and works.

The Hebrew behind Isaiah 40:21

• "known" (יָדַע, yada‘): This word means more than just having information; it often refers to deep, experiential knowledge. Isaiah is asking if the people have truly grasped who God is.
• "heard" (שָׁמַע, shama‘): This word means to listen or pay attention, not just to physically hear. Isaiah is emphasizing that the message about God has been proclaimed and should be heeded.
• "told" (נָגַד, nagad): This word means to announce or declare. Isaiah points out that God’s greatness has been clearly communicated to the people.
• "beginning" (רֹאשׁ, rosh): This word means the start or the earliest time. Isaiah is reminding them that these truths about God go back to the very start of history.
• "understood" (בִּין, bin): This word means to discern or comprehend. Isaiah is urging the people to reflect and truly understand what has been revealed.
• "foundations" (מוֹסָד, mosad): This word refers to the base or support of something, here meaning the creation of the earth. Isaiah is pointing to the time when the world itself was established.
• "earth" (אֶרֶץ, erets): This word means the land or the whole world, reinforcing the universal scope of God’s creative work.

Why Isaiah 40:21 matters

• Isaiah 40:21 corrects the idea that God’s power or presence is a new or hidden teaching; it insists these truths have always been available to those willing to listen and remember.
• The verse ties the message of comfort and hope in Isaiah 40 back to the foundational belief in God as Creator, grounding encouragement in God’s unchanging nature.
• By using questions, Isaiah invites the audience to actively recall and engage with what they already know, rather than passively accept discouragement or doubt.