Stu:"I came not to bring peace, but to bring a sword" (Matthew 10:34)"for all those who take up the sword will perish by the sword." (Matthew 26:48-52)
... seems he got the comeuppance predicted.
You are ignoring context. (Context refers to surrounding words, verses, and chapters.) At Matthew 10:34, Jesus Christ was not talking about a literal sword. He was using figurative speech. A sword, in the figurative sense, refers to division on the intellectual level. Below is the context from where you cherry-picked those few words. Take particular note to the words at verse 35.
"{32} Everyone, then, that confesses union with me before men, I will also confess union with him before my Father who is in the heavens; {33} but whoever disowns me before men, I will also disown him before my Father who is in the heavens. {34} Do not think I came to put peace upon the earth; I came to put, not peace, but a sword. {35} For I came to cause division, with a man against his father, and a daughter against her mother, and a young wife against her mother-in-law. {36} Indeed, a man's enemies will be persons of his own household." (Matthew 10: 32-36)
Based upon the context, it should be obvious that Jesus was NOT saying family members people would take up the literal, physical sword against each other and that he was referring to intellectual division. We see this everyday in families where certain family members are ostracized when they don't see eye to eye.
Alter2Ego
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"That people may know that you, whose name is JEHOVAH, you alone are the Most High over all the earth." ~ Psalms 83:18