'Certainty' in the Bible

Your life will hang in doubt before you; you will be terrified by night and day and will have no certainty of surviving from one day to the next.

And they answered Joshua and said, "Because it was told with certainty to your servants that Yahweh your God commanded Moses his servant to give to you all the land and to destroy all the inhabitants of the land before you, so we were very afraid for our lives because of you, and so we did this thing.

Know for a certainty that the LORD your God will no more drive out any of these nations from before you; but they shall be snares and traps unto you, and scourges in your sides, and thorns in your eyes, until ye perish from off this good land which the LORD your God hath given you.

And Jonathan said, Far be it from thee; for, if I knew with certainty that evil were determined by my father to come upon thee, would I not tell it thee?

See therefore, and take knowledge of all the lurking places where he hideth himself, and come ye again to me with the certainty, and I will go with you: and it shall come to pass, if he be in the land, that I will search him out throughout all the thousands of Judah.

David therefore sent out spies, and understood that Saul was come of a certainty.

For on the day you leave and cross over the Brook Kidron, know for certain that you shall surely die; your blood shall be on your own head.”

So the king sent word and called for Shimei and said to him, “Did I not make you swear by the Lord and solemnly warn you, saying, ‘Know for certain that on the day you leave [Jerusalem] and go anywhere, you shall surely die’? And you said to me, ‘The word (ruling) I have heard is good.’

For there is no certainty in their mouth; their inward part is perversion, their throat is an open sepulchre; they flatter with their tongue.

That I might make thee know the certainty of the words of truth; that thou mightest answer the words of truth to them that send unto thee?

But there will be no more gloom for her who was in anguish [for with judgment comes the promise of salvation]. In earlier times He treated the land of Zebulun and the land of Naphtali with contempt, but later on He will make them honored [by the presence of the Messiah], by the way of the sea, on the other side of Jordan, Galilee of the Gentiles.

The Lord has spoken to you, O remnant of Judah, “Do not go into Egypt!” Know with certainty that I [Jeremiah] have warned you and testified to you this day

Now therefore know for certain that you will die by the sword, by famine, and by virulent disease in the land [of Egypt] where you wish to reside [temporarily].

The king answered and said, I know of certainty that ye would gain the time, because ye see the thing is gone from me.

I have drawn near unto one of those standing, and the certainty I seek from him of all this; and he hath said to me, yea, the interpretation of the things he hath caused me to know:

'Then I wished for certainty concerning the fourth beast, that was diverse from them all, fearful exceedingly; its teeth of iron, and its nails of brass, it hath devoured, it doth break small, and the remnant with its feet it hath trampled;