An adjective in predicate position is “the word is good“. An adjective in attributive position is “the good word”. An adjective in the substantival position is functioning as a noun. “The good is something we should pursue.”
Greek:
An adjective in predicate position is anarthrous. When translating, some form of the verb “to be” will be necessary. The following sentences all mean, “The word is good.” Study chapter 9 in BBG.
ο λογος αγαθος
αγαθος ο λογος
.
Hebrew:
Watch the videos for attributive, predicate, and substantival uses of the adjective. Also this.