'Surely' in the Bible

Joab said, "{As God lives}, for if you had not spoken, the people would surely have gone up in the morning, each [one of them] {from following after} his brother."

Uriah said to David, "The ark and Israel and Judah [are] living in the booths; and my lord Joab and the servants of my lord [are] camping on the surface of the open field; and I, shall I go to my house to eat and to drink and to sleep with my wife? [By] your life and the life of your soul, I surely will not do this thing."

Then she said, "Please may the king remember Yahweh your God, {to prevent the increase of blood avengers who kill}, [so that they] not wipe out my son." He said, "{As Yahweh lives}, surely not one hair shall fall from your son to the ground."

The king asked, "[Was] the hand of Joab with you in all of this?" The woman answered and said, "{As your soul lives}, my lord the king, surely [one cannot] go to the right or to the left from all that my lord the king has spoken. Yes, your servant Joab himself commanded me, and he put all of these words in the mouth of your servant.

But Ittai answered the king and said, "{As Yahweh lives} and {my lord the king lives}, surely in the place wherever my lord the king shall be, if for death or if for life, surely there your servant will be."