re: Christians Can Learn tolerance from Muslim Migrants per German Finance Minister

Context is important with all those verses. He wasn't commanding anyone to take up the sword. He was predicting the 2nd coming, where there will be a great tribulation against the people of God and Christ will return and bear the sword, Himself, and defeat His enemies.

The Romans 13:4 passage is laughable in this context. Paul was talking about submitting to the ruling authorities who "bear the sword" (of justice) against the wrongdoer. He was saying that Christians should obey the government and he was saying it to Christians being persecuted by a wicked Roman emperor.

ETA: Christ was also talking about bringing division and enmity, even within households where a father believes and a son doesn't, or a mother believes and a daughter doesn't. He wasn't talking about taking up the sword to kill unbelievers but talking figuratively about strife that would exist because He came to show people the truth.