A — 1: προφητεία
(Strong's #4394 — Noun Feminine — propheteia — prof-ay-ti'-ah )

signifies "the speaking forth of the mind and counsel of God" (pro, "forth," phemi, "to speak:" see PROPHET); in the NT it is used (a) of the gift, e.g., Romans 12:6; 1—Corinthians 12:10; 13:2; (b) either of the exercise of the gift or of that which is "prophesied," e.g., Matthew 13:14; 1—Corinthians 13:8; 14:6,22; 1—Thessalonians 5:20 , "prophesying (s);" 1—Timothy 1:18; 4:14; 2—Peter 1:20,21; Revelation 1:3; 11:6; 19:10; 22:7,10,18,19 .

Micah 5:2John 11:51Matthew 26:68Genesis 20:7Deuteronomy 18:18Revelation 10:1111:31—Corinthians 12:28Ephesians 2:20Ephesians 4:8,11Acts 13:11—Corinthians 14:31—Corinthians 14:24,251—Corinthians 13:8,92—Peter 2:1
B — 1: προφητικός
(Strong's #4397 — Adjective — prophetikos — prof-ay-tik-os' )

"of or relating to prophecy," or "proceeding from a prophet, prophetic," is used of the OT Scriptures, Romans 16:26 , "of the prophets," lit., "(by) prophetic (Scriptures);" 2—Peter 1:19 , "the word of prophecy (made more sure)," i.e., confirmed by the person and work of Christ (AV, "a more sure, etc."), lit., "the prophetic word."

C — 1: προφητεύω
(Strong's #4395 — Verb — propheteuo — prof-ate-yoo'-o )

"to be a prophet, to prophesy," is used (a) with the primary meaning of telling forth the Divine counsels, e.g., Matthew 7:22; 26:68; 1—Corinthians 11:4,5; 13:9; 14:1,3-5,24,31,39; Revelation 11:3; (b) of foretelling the future, e.g., Matthew 15:7; John 11:51; 1—Peter 1:10; Jude 14 .