'Surely' in the Bible

And Jabez called upon the God of Israel, saying, "Oh that you would surely bless me and enlarge my border. And may your hand be with me, that you would keep me from evil so that it might not harm me!" And God granted what he asked.

Tremble in his presence, all the earth! Surely the inhabited world stands firm it cannot be moved.

"What more can David say to you about how you are honoring your servant, and you surely know your servant.

And the messenger of Jehovah spake unto Gad, saying for David, 'Surely David doth go up to raise an altar to Jehovah in the threshing-floor of Ornan the Jebusite.'

And king David saith to Ornan, 'Nay, for I surely buy for full silver; for I do not lift up that which is thine to Jehovah, so as to offer a burnt-offering without cost.'