'Cannot' in the Bible

Let no man say when he is tempted, I am tempted of God: for God cannot be tempted with evil, neither tempteth he any man:

What good does it do, my brothers, if someone claims to have faith but does not prove it with actions? This kind of faith cannot save him, can it?

A spring cannot pour both fresh and brackish water from the same opening, can it?

My brothers, a fig tree cannot produce olives, nor a grapevine figs, can it? Neither can a salt spring produce fresh water.

Ye lust, and have not: ye kill, and desire to have, and cannot obtain: ye fight and war, yet ye have not, because ye ask not.