to know (properly · verb, qal imperfect, 2nd person masculine plural
heard
תִשְׁמָ֔עוּtish.Ma.'u
H8085
to hear intelligently (often with implication of attent… · verb, qal imperfect, 2nd person masculine plural
told
הֻגַּ֥דhu.Gad
H5046
properly · verb, hophal perfect, 3rd person masculine singular
beginning
מֵרֹ֖אשׁme.Rosh
H7218
the head (as most easily shaken) · preposition + noun, common masculine singular absolute
understood
הֲבִ֣ינֹתֶ֔םha.Vi.no.Tem
H995
to separate mentally (or distinguish) · verb, hiphil perfect, 2nd person masculine plural
foundations
מוֹסְד֖וֹתmos.Dot
H4146
a foundation · noun, common feminine plural construct
earth
הָאָֽרֶץha.'A.retz
H776
the earth (at large · definite article + noun, common feminine singular absolute
Strong's Exhaustive Concordance (James Strong, 1890/1894), public domain; digitized by Open Scriptures (CC BY-SA). KJV word tagging: eBible.org (public domain). Original-language text, parsing and brief lexicon: STEPBible.org data from Tyndale House, Cambridge (CC BY 4.0).
Cross-references
Psalms 50:6 And the heavens shall declare his righteousness: for God is judge himself. Selah.
Isaiah 46:8 Remember this, and shew yourselves men: bring it again to mind, O ye transgressors.
Isaiah 48:13 Mine hand also hath laid the foundation of the earth, and my right hand hath spanned the heavens: when I call unto them, they stand up toget…
Acts 14:17 Nevertheless he left not himself without witness, in that he did good, and gave us rain from heaven, and fruitful seasons, filling our heart…
Romans 1:19-21 Because that which may be known of God is manifest in them; for God hath shewed it unto them.
Psalms 115:8 They that make them are like unto them; so is every one that trusteth in them.
Romans 1:28 And even as they did not like to retain God in their knowledge, God gave them over to a reprobate mind, to do those things which are not con…
Psalms 19:1-5 The heavens declare the glory of God; and the firmament sheweth his handywork.
Cross-references from OpenBible.info (CC BY), in the lineage of the Treasury of Scripture Knowledge (public domain).
Commentary
Matthew Henry on Isaiah 40:18-26
The prophet here reproves those, 1. Who represented God by creatures, and so changed his truth into a lie and his glory into shame, who made images and then said that they resembled God, and paid their homage to them accordingly. 2. Who put creatures in the place of God, who feared them more than God, as if they were a match for him, or loved them more than God, as if they were fit to be rivals with him. Twice the challenge is here made, To whom will you liken God? Isa 40:18, and again Isa 40:25. The Holy One himself says, To whom will you liken me? This shows the folly and absurdity, (1.) Of corporal idolatry, making visible images of him who is invisible, imagining the image to be animated…
ye--who worship idols. The question emphatically implies, they had known.
from the beginning-- (Isa 41:4, Isa 41:26; Isa 48:16). God is the beginning (Rev 1:8). The tradition handed down from the very first, of the creation of all things by God at the beginning, ought to convince you of His omnipotence and of the folly of idolatry.
John Gill on Isaiah 40:21
Have ye not known? This is the speech of the prophet, directed to the idolaters, appealing to their own natural knowledge, who, from the light of nature, might know that idols were nothing, had no divinity in them: that it is God that made the earth and governs the world, and who only ought to be worshipped:
have ye not heard? by tradition from the ancients, from your forefathers, who received it from theirs, and have delivered it to you:
hath it not been told you from the beginning? from the beginning of your states and kingdoms, and even from the beginning of the world, by the wisest and best of men that have been in it, that those things are true before related, and what follow:
have y…
Do ye not know? After having ridiculed the stupidity and madness of the Gentiles, the Prophet turns to the Jews; for we are all prone to superstition, and thus we easily fall into it when any example is placed before our eyes. In consequence of mixing with the Babylonians during their captivity, the Jews were constrained to behold daily the basest examples of idolatry, and might be led away to wicked imitation. Isaiah therefore anticipates this at an early period, and warns them not to be carried away by the sight of such things.
He asks, "Have they not been taught, and have they not learned who is God?" The greater part of commentators think that all the questions here put are a repetition…
The Church Fathers
From the beginning, [Isaiah] says, have I not taught you the weakness of the idols? Do you not know who it is who set the earth on its foundations with a view to assuring its stability?
The divinely inspired Scripture was not silent. For the knowledge of the truth from above was veiled through the patriarchs, through the law and the prophets. But this was not the case when the only-begotten Word of God came among us as a man to illuminate those on the earth. This was the last days when the leader of those who oppose spiritual deception came. It was the first of the attacks on idolatry. For the choir of the saints never stops attacking such deception, showing how loathsome it is while at the same time making known the [true] Maker and Lord of the universe.
(Vers. 21 seqq.) Do you not know? Do you not hear? Has it not been announced to you from the beginning? Have you not understood the foundations of the earth? He sits above the circle of the earth, and its inhabitants are like locusts. He spreads out the heavens like nothing, and expands them as a tent to dwell in. He makes secret things known as if they were not. He has made the rulers of the earth as nothing. They are not planted, nor are they sown, nor do their roots take hold in the earth. He blows on them and they wither, and the whirlwind carries them away like stubble. And to whom have you compared me and made me equal? says the Lord. Lift up your eyes on high and see who has created these things: he who brings out their host by number, and calls them all by name. Because of his great power and strength, and because his power has no end. LXX: Do you not know? Have you not heard? Has it not been told to you from the beginning? Have you not understood the foundation of the earth? He who sits above the circle of the earth, and its inhabitants are like grasshoppers. He who sets the heavens like a tent and stretches them like a dwelling place. He who makes princes rule for nothing, and reduces the earth to nothing. For they shall not be planted, nor shall they be sown, nor shall their root be established in the earth. He blows upon them, and they wither, and the storm carries them away like straw. So now to whom will you compare me? Or how am I equal? says the Holy One. Lift up your eyes on high and see: who created these? He who leads according to his ordered number, he will call all by name, from much glory and in the strength of fortitude: nothing escapes you. From the beginning, he said, I have taught you by the natural law, and afterwards I have testified through the written law of Moses, what idols are nothing, and that the Creator of the world himself is God, who has founded such a great mass of land upon the seas, and has placed it upon the rivers: so that the heaviest element hangs by the will of God upon the thin waters, who sits as a king upon the circumference of the earth: from which some contend that it is like a dot and a globe, and its inhabitants like locusts. For if we consider the various nations in the whole world, from the Ocean to the Ocean, that is, from the Indian sea to the British, and from the Atlantic to the harshness of the…
Dictionary and topics
Isaiah, The Book of — Consists of prophecies delivered (Isa. 1) in the reign of Uzziah (1-5), (2) of Jotham (6), (3) Ahaz (7-14:28), (4) the first half of Hezekiah’s reign (14:28-35), (5) the second half of Hezekiah’s…
Blindness · 21:14;22:13,14; — 21:14;22:13,14;
Dictionary: Easton's (1897) and Smith's (1863), public domain. Topics: Nave's Topical Bible (1896) and Torrey's Topical Textbook (1897), public domain. Both as parsed by NEUU (CC BY 4.0).
Having thus depicted in a few strokes the infatuation of idolatry, the prophet addresses the following question to such of the Israelites as are looking at it with longing eye, even if they have not already been deluded by it. "Do ye not know? Do ye not hear? Is it not proclaimed to you from the beginning? Have ye not obtained an insight into the foundations of the earth?" We have here four questions chiastically arranged. The absolute being of God, which is above all created things, is something which may be either inferred per ratiocinationem, or learned per traditionem. When Israel failed to acknowledge the absolute distinctness and unequalled supremacy of Jehovah its God, it hardened its…
Idolaters fail to discern who God is or to respond wisely to him. The godly in Israel would understand and see the hand of God in the unfolding story of redemption, which includes both exile and restoration (41:20).
Rashi on Isaiah 40:21
Do you not know...the foundations of the earth Who founded it, and you should have worshipped Him.