Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
LXX

2 Kings 13:19

And the man of God was grieved at him, and said, If thou hadst smitten five or six times, then thou shouldest have smitten Syria till thou hadst consumed them; but now thou shalt smite Syria [only] thrice.

Read in other translations