Song of Songs 4:3

Thy lips are like a thread of scarlet, and thy speech is comely: thy temples are like a piece of a pomegranate within thy locks.

Cross-reference

In Song 4:11, the same beloved's lips drop honey and milk, reinforcing the sweetness of speech introduced here with 'speech is comely'.

Song of Solomon 6:7 repeats the exact same phrase about temples like halves of a pomegranate—a clear parallel within the same poem.

In Song 5:13, the lover's lips are like lilies dropping myrrh, a parallel romantic description of lips to the scarlet thread here.

In Song 5:16, the beloved's mouth is called 'most sweet', echoing the comely speech of 4:3 and describing the same desirability.

In Song 7:9, the roof of the mouth is like wine, causing lips to speak — another sensual link to the lips and speech here.