Ode
A three letter synonym for a verse is ode.
ode
e'er
(Indian word verse of the Rigveda. Vedic verse; the Rigveda.
No
There is no such book or verse.
rhyme
verse
6,482
An epistle is a literary work in letter form that is sometimes written in verse and addressed to a friend or a family.
The word "acrostic" originates from the Greek words "akros," meaning "topmost" or "end," and "stichos," meaning "line of verse." An acrostic is a poem or puzzle where the first letter of each line spells out a word or message.
The Lord speaking in this passage is alluding to the resurrection and the judgment, the wheat bing the redeemed and the chaff those who chose not to accept Christ as savior.