Luke 12:51

δοκεῖτε. As they were far too much inclined to suppose, Luke 19:11.

ὅτι εἰρήνην παρεγενόμην δοῦναι ἐν τῇ γῇ. It is only in His ultimate kingdom that Christ will be fully the Prince of Peace, as was understood even by Simeon, Luke 2:34-35; see too John 9:39.

οὐχὶ … ἀλλ' ἢ διαμερισμόν. “There was a division among the people because of him,” John 7:43. The phrase ἀλλ' ἢ is a contraction of ἄλλο ἢ (I am come to send no other thing than division). It occurs but three times in the N.T., here, 2 Corinthians 1:13 and (perhaps) 1 Corinthians 3:5. Winer, p. 552 n. St Luke uses διαμερισμὸν for the μάχαιραν found in St Matthew. “I came not to send peace but a sword.” Matthew 10:34. “Near me, near the sword” (unwritten saying of Christ). The Hebrew חרב would admit either rendering (LXX[271] often πόλεμον).

[271] LXX. Septuagint.