'Surely' in the Bible

Surely my Lord does not do anything unless he has revealed his secret to his servants the prophets.

Therefore, thus says Yahweh, 'Your wife will become a prostitute in the city and your sons and your daughters will fall by the sword and your land will be divided with a line, and you will die in an unclean land and Israel will surely go into exile from this land.'"

Yahweh has sworn by the pride of Jacob, "Surely I will never forget any of their deeds!