'Know' in the Bible

[because you] know that the testing of your faith produces endurance.

But do you want to know, O foolish person, that faith apart from works is useless?

Not many should become teachers, my brothers, [because you] know that we will receive a greater judgment.

Adulterous people! Do you not know that friendship with the world is enmity with God? Therefore whoever wants to be a friend of the world makes [himself] an enemy of God.

you who do not know {what will happen tomorrow}, {what your life will be like}. For you are a smoky vapor that appears for a short time and then disappears.

he should know that the one who turns a sinner back from the error of his way will save that person's soul from death, and will cover over a great number of sins.