Flavius Josephus, Antiquities of the Jews
William Whiston, A.M., Ed.

[263] When the ambassadors came to him, he came to Jerusalem; and the tribe of Judah was the first that came to meet the king at the river Jordan. And Shimei, the son of Gera, came with a thousand men, which he brought with him out of the tribe of Benjamin; and Ziba, the freed-man of Saul, with his sons, fifteen in number, and with his twenty servants. All these, as well as the tribe of Judah, laid a bridge [of boats] over the river, that the king, and those that were with him, might with ease pass over it. Now as soon as he was come to Jordan, the tribe of Judah saluted him. Shimei also came upon the bridge, and took hold of his feet, and prayed him to forgive him what he had offended, and not to be too bitter against him, nor to think fit to make him the first example of severity under his new authority; but to consider that he had repented of his failure of duty, and had taken care to come first of all to him. While he was thus entreating the king, and moving him to compassion, Abishai, Joab's brother, said, "And shall not this man die for this, that he hath cursed that king whom God hath appointed to reign over us?" But David turned himself to him, and said, "Will you never leave off, ye sons of Zeruiah? Do not you, I pray, raise new troubles and seditions among us, now the former are over; for I would not have you ignorant that I this day begin my reign, and therefore swear to remit to all offenders their punishments, and not to animadvert on any one that has sinned. Be thou, therefore," said he, "O Shimei, of good courage, and do not at all fear being put to death." So he worshipped him, and went on before him.