A restrictive clause is not separated by a comma from the noun. "Every one must love a boy who [that] is attentive and docile." "He preaches sublimely who [that] lives a holy life." "The things which [that] are seen are temporal." "A king depending on the support of his subjects can not rashly go to war." "The sailor who [that] is not superstitious will embark any day."
The comma is used after adjectives, nouns, and verbs in sentences like the following:
"Are all thy conquests, glories, triumphs, spoils
Shrunk to this little measure?"
"He fills, he bounds, connects and equals all."
"Who to the enraptured heart, and ear, and eye
Teach beauty, virtue, truth, and love, and melody."[25]
"He rewarded his friends, chastised his foes, set Justice on her seat, and made his conquest secure."
The comma is used to separate adjectives in opposition, but closely connected. "Though deep, yet clear; though gentle, yet not dull." "Liberal, not lavish, is kind Nature's hand." "Though black, yet comely; and though rash, benign."
After a nominative, where the verb is understood. "To err is human; to forgive, divine." "A wise man seeks to shine in himself; a fool, in others." "Conversation makes a ready man; writing, an exact man; reading, a full man."
A long subject is often separated from the predicate by a comma. "Any one that refuses to earn an honest livelihood, is not an object of charity." "The circumstance of his being unprepared to adopt immediate and decisive measures, was represented to the Government." "That he had persistently disregarded every warning and persevered in his reckless course, had not yet undermined his credit with his dupes." "That the work of forming and perfecting the character is difficult, is generally allowed."