“In Hebron he reigned over Judah seven years and six months: and in Jerusalem he reigned thirty and three years over all Israel and Judah.”
King James Version (KJV)
5:3 A league - Whereby David obliged himself to rule them according to God's laws; and the people promised obedience to him.
5:6 Cannot come - They confided in the strength of their fortifications, which they thought so impregnable, that the blind and the lame were sufficient to defend them, against the most powerful assailant. And probably they set a parcel of blind and lame people, invalids or maimed soldiers, to make their appearance on the wall, in contempt of David and his men.