'Doubtless' in the Bible

And he said to them, "Doubtless you will tell me this parable: 'Physician, heal yourself!' Whatever we have heard that took place in Capernaum, do here in your hometown also!"

What then {is to be done}? Doubtless they will all hear that you have come!

And when the local people saw the creature hanging from his hand, they began saying to one another, "Doubtless this man is a murderer whom, [although he] was rescued from the sea, Justice has not permitted to live!"

Or doubtless does he speak {for our sake}? For it is written {for our sake}, because the one who plows ought to plow in hope and the one who threshes [ought to do so] in hope of a share.