Adjectives refer to nouns in two ways: either as an attribute or as a predicate.
The attributive use of the adjective qualifies the noun, to describe, without any assertion about it. The attributive is an adherent description.
The Position: ὀ πίστος δοῦλος or ὀ δοῦλος ὀ πίστος
Note: the adjective comes immediately after the article.
The predicate use of the adjective makes an assertion about the noun. The predicate is an additional statement.
The Position: ὀ δοῦλος πίστος or πίστος ὀ δοῦλος
Note: The adjective does not come immediately after the article but either precedes the article or follows the noun.
The Adjective used as a noun
ὁ ἀγαθός “the good man”.
The Adjective used as an adverb
The adjective is in direct relation to the verbal idea. Determined by whether the adjective is more closely associated with the verb or the noun. Comparison can be seen in John 10:40 and Mark 4:28. In John 10:40 the adjective is more intimately associated with the verb “to be” rendering a reading of “The place where John first baptized.” Where in Mark 4:28 the adjective is modifying the noun.
The Adjective used in Comparison
In this usage, the verb and its object are derived from the same root. It is used sometimes for emphasis. Basically, it repeats and explains more fully the idea expressed by the verb.
The Comparative Degree
Expressed by the positive adjective with a prepositional phrase, followed by ἤ, or followed by μᾶλλον.
Expressed by the comparative adjective followed by ἤ or followed by the ablative.
The Superlative Degree
The majority of the superlatives are used for emphasis in the New Testament, in the sense of very or exceedingly. […]