'Surely' in the Bible

When he was gone out, his servants came; and when they saw that, behold, the doors of the parlour were locked, they said, Surely he covereth his feet in his summer chamber.

And she said, I will surely go with thee: notwithstanding the journey that thou takest shall not be for thine honour; for the LORD shall sell Sisera into the hand of a woman. And Deborah arose, and went with Barak to Kedesh.

And the LORD said unto him, Surely I will be with thee, and thou shalt smite the Midianites as one man.

He said, "They were my brothers, the sons of my mother. I swear, as surely as the Lord is alive, if you had let them live, I would not kill you."

They said, “We will surely give them.” So they spread out a garment, and every one of them threw an earring there from his spoil.

And the elders of Gilead said to Jephthah, "The LORD will be witness between us; we will surely do as you say."

Then it shall be, that whatsoever cometh forth of the doors of my house to meet me, when I return in peace from the children of Ammon, shall surely be the LORD'S, and I will offer it up for a burnt offering.

And Manoah said unto his wife, We shall surely die, because we have seen God.

Samson said to them, “Since you act like this, I will surely take revenge on you, but after that I will quit.”

And they spake unto him, saying, No; but we will bind thee fast, and deliver thee into their hand: but surely we will not kill thee. And they bound him with two new cords, and brought him up from the rock.

And when the men of Israel retired in the battle, Benjamin began to smite and kill of the men of Israel about thirty persons: for they said, Surely they are smitten down before us, as in the first battle.

And the children of Israel said, Who is there among all the tribes of Israel that came not up with the congregation unto the LORD? For they had made a great oath concerning him that came not up to the LORD to Mizpeh, saying, He shall surely be put to death.