'Surely' in the Bible

Joab said, "As God lives, if you had not spoken, surely then in the morning the people would have gone away, and not each followed his brother."

David said to him, "Don't be afraid of him; for I will surely show you kindness for Jonathan your father's sake, and will restore to you all the land of Saul your father. You shall eat bread at my table continually."

However, because by this deed you have given great occasion to Yahweh's enemies to blaspheme, the child also who is born to you shall surely die."

Ittai answered the king, and said, "As Yahweh lives, and as my lord the king lives, surely in what place my lord the king shall is, whether for death or for life, even there also will your servant be."

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."

Then she spoke, saying, "They were used to say in old times, 'They shall surely ask counsel at Abel;' and so they settled it.