The secret in the harmony of short verses with long ones:

And it should be known

that the harmony of speech

and its suitability and ease on the reader's tongue

due to its taking the place of common proverbs,

or due to its repetition in the noble verse

it harmonizes between the long speech and the short speech,

and produces between them a balance and harmony,

so sometimes the first phrases of the speech are brought

shorter and more concise than the second phrase,

and it yields sweetness in speech and a new pleasure

like His saying - Exalted is He -: {Seize him and shackle him (30) Then burn him in Hellfire (31) Then in a chain whose length is seventy cubits insert him}.

So it is as if the speaker in such speech

conceives in his mind

that the first sentence together with the second sentence are in one pan,

and the third sentence alone is in another pan.

The verses with three segments:

Likewise, the verse is sometimes of three segments,

like His saying - Exalted is He -: {The Day (when) faces will turn white and turn black, as for those whose faces turned black}.

Et cetera the verse, {And as for those whose faces turned white}.

Et cetera the verse and the general mass of readers group the first with the second,

and consider it a long verse.

The verse with two pauses:

And sometimes in a single verse there occur two pauses

just like that occurs in the poetic verse also.