Lord, they have killed thy prophets,.... By the order of Jezebel, wife of Ahab king of Israel, 1Ki 18:4. This sin of slaying the prophets of the Lord is charged upon the Jews by Christ, Mt 23:31, and by the apostle, 1Th 2:15.
In the text in 1Ki 19:14, it is added, "with the sword": which expresses the manner of death they were put to; and this clause is there put after the following, according to a rule of transposition among the Jews;See Gill on "Mt 27:10".
And digged down thine altars; either the altars which the patriarchs had formerly built, and were still in being; and though not used, yet were kept and had in great veneration; wherefore the pulling of them down was done in contempt of them, and of the worship of God, which had been formerly performed there; or else such altars, which the religious among the ten tribes built, since the times of Jeroboam, who forbad them to go up to Jerusalem, but ordered them to go to Dan or Bethel; which they not choosing to do erected altars in different places for divine service, and which the Jews say were allowed; for from that time, the prohibition of altars at other places than at Jerusalem ceased:and I am left alone: meaning either as a prophet, not knowing that Obadiah had hid an hundred prophets by fifty in a cave, 1Ki 18:4; or else as a worshipper of the true God, imagining that he was the only person in Israel, that had a true zeal for the Lord of hosts:and they seek my life; lay in wait for it, Jezebel by her emissaries being in quest of him; it is added in 1Ki 19:14, "to take it away"; for she had swore by her gods, that by the morrow about that time, his life should be as the life of one of the prophets of Baal he had slain; and in one copy it is added here.
Kimchi in 1 Kings xviii.