'Certainly' in the Bible

The king answered and said, "{Certainly} I know that {you are trying to gain time} {because} you have seen {that this matter is firmly decreed by me},

Then Nebuchadnezzar the king was astonished, and he rose up in haste [and] he asked, saying to his advisers, "[Did] we not throw three men, bound, into the midst of the fire? They answered, saying to the king, "Certainly, O king!"