'Certainly' in the Bible

As I took an oath to you by the Lord, the God of Israel, saying, Certainly Solomon your son will become king after me, seated on my seat in my place; so will I do this day.

The nations of which the Lord had said to the children of Israel, You are not to take wives from them and they are not to take wives from you; or they will certainly make you go after their gods: to these Solomon was united in love.

For the outcry he made by the word of the Lord against the altar in Beth-el and against all the houses of the high places in the towns of Samaria, will certainly come about.

And Elijah said, By the life of the Lord of armies, whose servant I am, I will certainly let him see me today.

Then the king of Aram's servants said to him, Their god is a god of the hills; that is why they were stronger than we: but if we make an attack on them in the lowlands, we will certainly be stronger than they.

And get together another army like the one which came to destruction, horse for horse, and carriage for carriage; and let us make war on them in the lowlands, and certainly we will be stronger than they. And he gave ear to what they said, and did so.