Main point summary
God delivers His people through immeasurable acts of glory, power, grace and mercy to display that He, alone, is worthy of praise. He is God, He contends for you, He loves you, and He wants you to know His fellowship. Therefore, love Him and experience His grace for you by obeying His commands, which brings Him delight, and shall result in your blessing forever.
“For w ask now of the days that are past,
[God is has done an immeasurably good and merciful work in Israel's past, and he will continue to do so in the future] THUS, just ask of anyone from before
which were before you,
IN OTHER WORDS, any previous period in time
since the day that God created man on the earth,
EVEN from the the time when God created humans
and ask from one end of heaven to the other,
OR ask throughout the cosmos
whether such a great thing as this has ever happened
SPECIFICALLY, IF any such God has ever existed to do the amazing things He has done/will do for you
or was ever heard of.
OR IF anyone has even heard of such a God like this one.
x Did any people ever hear the voice of a god
THIS 'GREAT THING' MEANS, did any person ever hear directly from their 'god'
speaking out of the midst of the fire,
WHILE said god spoke from the fire,
as you have heard,
like you have
and still live?
WITH THE RESULT that they survived to tell the tale?
Or has any god ever attempted to go
OR has any of their 'gods' ever actually gone before
and take a nation for himself from the midst of another nation,
IN ORDER TO physically capture a nation to himself
BY making life difficult for the host nation
y by signs,
OR BY 12 plages
OR BY miracles
and z by war,
OR BY physical battle
a by a mighty hand
MORE SPECIFICALLY, WITH His own invincible power
and b an outstretched arm,
AND BY unyielding protection to you
and by great deeds of terror,
AND BY confounding the enemy
all of which the Lord your God did for you
WHICH He exemplified/actually showed you
before your eyes?
AND right before your eyes?!
To you it was shown,
THE PURPOSE OF You witnessing all these things by God
c that you might know that the Lord is God;
IS SO THAT you might know He is God
d there is no other besides him.
IN OTHER WORDS that He is incomparable
e Out of heaven
TO EXPLAIN (and answer), FROM above
he let you hear his voice,
1) He chose you to hear Him
that he might discipline you.
IN ORDER THAT you might be fashioned into the people that please Him
And on earth
AND ON earth
he let you see his great fire,
2) He let you see His fire
and x you heard his words out of the midst of the fire.
AS A RESULT He let you hear Him in the fire
And because f he loved your fathers
AND DUE TO THE FACT THAT 3) He loved your forefathers
and chose their offspring after them 1
AND 4) chose their offspring as His people
and brought you out of Egypt
AND 5) brought you out of Egypt
g with his own presence,
BY His own leading spirit
by his great power,
AND BY His own power
h driving out before you nations greater and mightier than you,
WITH THE RESULT THAT you saw Him expel nations from their lands that were more (humanly) powerful than you
to bring you in,
IN ORDER TO bring you to the land
to give you their land for an inheritance,
IN OTHER WORDS, to give you that land as a fulfillment of His promise
as it is this day,
WHICH is what you have today,
know therefore today,
THEREFORE, you ought to know
and lay it to your heart,
AND keep in your heart
that i the Lord is God
that God is God alone
in heaven above
and on the earth beneath;
AND IN everything below
j there is no other.
IN OTHER WORDS, He is incomparable
k Therefore you shall keep his statutes and his commandments,
THEREFORE, obey Him
which I command you today,
WHICH I [also] plead of you to do (on the basis of what you have witnessed)
l that it may go well with you and with your children after you,
IN ORDER THAT you may be blessed
and that you may prolong your days
AND THAT you may live long lives
in the land that the Lord your God is giving you
IN the presence of God/IN the blessing of God
for all time.”
What is the 'great thing'? Historical deliverance and fellowship with God.
This is the point: that you would know God is God alone. None can compare, and none are worthy of Him.