'Certainly' in the Bible

Give ear then to the words of the Lord: You will never again get down from the bed on to which you have gone up, but death will certainly come to you. Then Elijah went away.

And they said to him, On our way we had a meeting with a man who said, Go back to the king who sent you and say to him, The Lord says, Is it because there is no God in Israel that you send to put a question to Baal-zebub, the god of Ekron? For this reason, you will not come down from the bed on to which you have gone up, but death will certainly come to you.

And he said to him, This is the word of the Lord: Because you sent men to put a question to Baal-zebub, the god of Ekron, for this reason you will never again get down from the bed on to which you have gone up, but death will certainly come to you.

And Elisha said to him, Go, say to him, You will certainly get better; but the Lord has made it clear to me that only death is before him.

Then he went away from Elisha and came in to his master, who said to him, What did Elisha say to you? And his answer was, He said that you would certainly get well.

And do not let Hezekiah make you put your faith in the Lord, saying, The Lord will certainly keep us safe, and this town will not be given into the hands of the king of Assyria.