'Sure' in the Bible

The king replied, "I know for sure that you are attempting to gain time, because you see that my decision is firm.

Forasmuch as thou sawest that the stone was cut out of the mountain without hands, and that it brake in pieces the iron, the brass, the clay, the silver, and the gold; the great God hath made known to the king what shall come to pass hereafter: and the dream is certain, and the interpretation thereof sure.

Then King Nebuchadnezzar was startled and quickly got up. He said to his ministers, "Wasn't it three men that we tied up and threw into the fire?" They replied to the king, "For sure, O king."

And whereas they commanded to leave the stump of the tree roots; thy kingdom shall be sure unto thee, after that thou shalt have known that the heavens do rule.