'Assuredly' in the Bible

And I will rejoice over them to do them good, and I will assuredly plant them in this land with my whole heart and with my whole soul.

For thus saith Jehovah: Behold, they whose judgment was not to drink of the cup shall assuredly drink; and thou indeed, shouldest thou be altogether unpunished? Thou shalt not go unpunished, but thou shalt surely drink.

Jehovah of hosts hath sworn by himself, I will assuredly fill thee with men, as with caterpillars; and they shall raise a shout against thee.