Synonymous parallelism is a poetic device used to amplify and emphasize an important idea. This kind of parallelism takes the form of a couplet, or two back-to-back parallel lines. The first line states an idea, and the second line rephrases the same idea in different words and imagery, which makes them synonymous. Synonymous parallelism is one of many different parallelism devices used in Hebrew poetry, each catalogued by Robert Lowth, an eighteenth century Anglican bishop. Three other common parallel devices are antithetical parallelism, emblematic parallelism, and synthetic parallelism, although synonymous parallelism is the most commonly found.
In the forests of the night."
End rhyme is similar to synonymous parallelism in that it creates rhythm and cohesion. However, it is different because it focuses on audible similarities instead of primarily thought similarities.
Observe how "lying lips" and "a deceitful tongue" are similar concepts that are amplified in importance when placed next to each other. The meanings are synonymous.
Many verses, such as Proverbs 3:11, contain multiple pairs of word synonyms.
or be weary of his reproof."
In this verse, the verbs "despise" and "be weary" (or "resent" in other translations) are quite similar ideas, just as the nouns "discipline" and "reproof" are similar. These pairs of synonymous ideas side-by-side are what create synonymous parallelism in Hebrew poetry. They serve to emphasize a strong idea.
he was crushed for our iniquities."
The prophet Isaiah creates cadence in his claim that Jesus will suffer for mankind's sins. This verse is so memorable, arguably more so than many other verses in the prophetic books, because of the structure. Synonymous parallelism, by reverberation, taps its way into our minds.
This literary device is one of the many devices in Hebrew poetry that makes the Bible such a rich piece of literature. We can use synonymous parallelism to find ideas and concepts that the author wants to amplify in meaning or wants us to remember.