What Does Deuteronomy 31:21 Mean?
And it will come to pass, when many evils and narrow places find them, that this song will answer before their faces as a witness, for it will not be forgotten from the mouths of their seed; I perceive the shape they are making today, before I bring them into the land which I swore.
Key words are shown with the Hebrew or Greek and what each word meant.
Selah Decoded Version The Selah Decoded Version renders what the Hebrew and Greek words meant to the people who first heard them.
King James wording
King James Version
And it shall come to pass, when many evils and troubles are befallen them, that this song shall testify against them as a witness; for it shall not be forgotten out of the mouths of their seed: for I know their imagination which they go about, even now, before I have brought them into the land which I sware.THE KEY
The song stays in their mouths because an inner pattern can be forgotten by the people who live it.
THE MEANING
A formed inclination is already known before the promised arrival, and the song continues to testify when trouble comes. What is carried in the mouth outlives the moment and gives the hidden pattern a voice.
WHAT THIS UNDOES
It undoes the belief that hardship creates the inner pattern or that the inward pattern remains unseen: it is already known, and the song gives it a public witness.
THE ROOT
יֵצֶר
yetzer
GROWS FROM
י־צ־ר
y-ts-r
to form, fashion, or shape
“shape” in this verse is yetzer. Yetzer names what is formed within: an inclination, design, or bent of thought. The verse says this formation is already known before arrival in the land, so the song’s witness brings an existing pattern into speech rather than creating it.
ALSO GROWS
yatsar: to form or fashion
יָצַר
The same verbal seed makes the imagination a formed inclination, not merely a passing thought.
yotser: potter; one who forms
יוֹצֵר
The potter’s image makes the formative sense visible: an inclination has shape and direction.
עֵד
ed
GROWS FROM
עוּד
ʿ-w-d
to bear witness or testify
A witness gives testimony that stands against denial. Here the song itself occupies that role and remains embodied in the next generation’s speech.
ALSO GROWS
edut: testimony or witness
עֵדוּת
This branch names the testimony the song preserves beyond the moment of trouble.
he'id: to testify or bear witness
הֵעִיד
The verb shows the song acting as a speaker that testifies against the people.
THE PATTERN
A witness preserves truth beyond the will of those it confronts.
Now therefore write this song for you, and teach it to the children of Israel; set it in their mouths, that this song may be a witness for me against the children of Israel.And Joshua said to all the people, Look, this stone shall be a witness for us, for it has heard all the words of the LORD that he spoke with us. It shall be a witness among you, lest you deny your God.Who point to the work of instruction written in their hearts, their conscience bearing witness alongside them, and their reckonings between one another accusing or answering.THE THREAD
And the LORD saw that the harm of humankind was great in the earth, and that every shaping of the thoughts of his heart was only harm all the day.Both verses use יֵצֶר (yetzer), the formed inclination or design. Genesis names it as an inward pattern; Deuteronomy says that pattern is already known and sets a remembered song beside it as witness.
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