And many people shall go and say, Come, and let us go up to the mountain of the LORD, to the house of the God of Jacob; and he will teach us of his ways, and we will walk in his paths: for out of Zion shall go forth the law, and the word of the LORD from Jerusalem.
All Commentaries on Isaiah 2:3 Go To Isaiah 2
Justin Martyr
AD 165
We can show you that this actually happened. For a group of twelve men went out from Jerusalem, and they were ignorant men, not trained in oratory. But through the power of God they witnessed to every race of humanity that they were sent out by Christ to teach the Word of God to all people. Now we who once killed one another no longer war against each other, but moreso we gladly die for the confession of Christ in order not to lie to or deceive our interrogators.