'Surely' in the Bible

Now when he was gone out, his servants came; and they saw, and, behold, the doors of the upper room were locked; and they said, Surely he is covering his feet in the upper chamber.

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

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

And the elders of Gilead said unto Jephthah, Jehovah shall be witness between us; surely according to thy word so will we do.

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

And Samson said unto them, If ye do after this manner, surely I will be avenged of you, and after that I will cease.

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 ropes, and brought him up from the rock.

And the men of Israel turned in the battle, and 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 in the assembly unto Jehovah? For they had made a great oath concerning him that came not up unto Jehovah to Mizpah, saying, He shall surely be put to death.