Micah was a prophet of the kingdom of Judah (see When Israel Became "Israel" and "Judah"). Little is recorded about the man himself, other than that he was a true prophet of God and that he was active at the same time as the prophet Isaiah, in the days of "Jotham, Ahaz, and Hezekiah, kings of Judah" (Micah 1:1, Isaiah 1:1 KJV; see also Kings of Israel and Judah and Israelite Dynasties). Micah is a good example that Prophets are not about themselves; they are merely servants of God who deliver a message from God. The prophecies that he was given were not only warnings to the people of Judah of his time. They provide us with some of the most beautiful prophecies of the future, including the famous "they shall beat their swords into plowshares, and their spears into pruninghooks: nation shall not lift up a sword against nation, neither shall they learn war any more."
"We will walk in the name of The Lord our God for ever and ever"
Everything that Micah was given to prophesy about his own time happened, as even secular historians, many of them, will admit. Everything that Micah was given to write about the future will also surely happen because what Micah and all of the other true prophets of God spoke was "The word of The Lord" (Micah 1:1 KJV).
"But in the last days it shall come to pass, that the mountain of the house of The Lord shall be established in the top of the mountains, and it shall be exalted above the hills; and people shall flow unto it."
"And many nations shall come, and say, Come, and let us go up to the mountain of The Lord, and to the house of the God of Jacob; and he will teach us of his ways, and we will walk in his paths: for the law shall go forth of Zion, and the word of The Lord from Jerusalem."
"And He shall judge among many people, and rebuke strong nations afar off; and they shall beat their swords into plowshares, and their spears into pruninghooks: nation shall not lift up a sword against nation, neither shall they learn war any more. But they shall sit every man under his vine and under his fig tree; and none shall make them afraid: for the mouth of The Lord of hosts hath spoken it."
"For all people will walk every one in the name of His God, and we will walk in the name of The Lord our God for ever and ever."
"In that day, saith The Lord, will I assemble her that halteth, and I will gather [see The Gatherings To Come] her that is driven out, and her that I have afflicted; And I will make her that halted a remnant, and her that was cast far off a strong nation: and The Lord shall reign over them in mount Zion from henceforth, even for ever." (Micah 4:1-7 KJV)
Fact Finder: What and who are the "Zion" and "daughter of Zion" that Micah was given to write about?
See Who, What or Where Is Zion? and Daughter of Zion