'Know' in the Bible

For this cause I also suffer these things. Yet I am not ashamed, for I know him whom I have believed, and I am persuaded that he is able to guard that which I have committed to him against that day.

This you know, that all who are in Asia turned away from me; of whom are Phygelus and Hermogenes.

(the Lord grant to him to find the Lord's mercy in that day); and in how many things he served at Ephesus, you know very well.

But know this, that in the last days, grievous times will come.