'Surely' in the Bible

Visit King David and say to him, 'My master, O king, did you not solemnly promise your servant, "Surely your son Solomon will be king after me; he will sit on my throne"? So why has Adonijah become king?'

I will keep today the oath I swore to you by the Lord God of Israel: 'Surely Solomon your son will be king after me; he will sit in my place on my throne.'"

They came from nations about which the Lord had warned the Israelites, "You must not establish friendly relations with them! If you do, they will surely shift your allegiance to their gods." But Solomon was irresistibly attracted to them.

So the Lord said to Solomon, "Because you insist on doing these things and have not kept the covenantal rules I gave you, I will surely tear the kingdom away from you and give it to your servant.

The king of Israel said to his servants, "Surely you recognize that Ramoth Gilead belongs to us, though we are hesitant to reclaim it from the king of Syria."