'Myself' in the Bible

David sent forth the people, a third part under the hand of Joab, and a third part under the hand of Abishai the son of Zeruiah, Joab's brother, and a third part under the hand of Ittai the Gittite. The king said to the people, "I will surely go forth with you myself also."

I was also perfect toward him. I kept myself from my iniquity.