'Certainly' in the Bible

Heaven and earth will testify against what has occurred today: you'll surely and swiftly be destroyed from the land that you are about to possess by crossing the Jordan River. You won't live long in it, because you'll certainly be exterminated.

If you neglect the LORD your God, follow other gods, and serve and worship them, I testify to you today that you will certainly be destroyed.

You must certainly give to him and not feel regret for doing so. Because of this, the LORD your God will bless all your works and everything you do.

You will certainly set a king over you, whom the LORD your God will choose from among your relatives, but you must not place a foreign king over you who is not from your relatives.

"When you make a vow to the LORD your God, don't delay paying it, because the LORD your God will certainly demand payment from you, and then you will be guilty of sin.

"I solemnly swear to heaven I say "As certainly as I'm alive and living forever,