'Know' in the Bible

For I want you to know how great a struggle I have for you, and for those in Laodicea, and for those who have not met me face to face.

because you know that you will receive your inheritance from the Lord as the reward. Serve the Lord Christ.

Masters, treat your slaves with justice and fairness, because you know that you also have a master in heaven.

Let your speech always be gracious, seasoned with salt, so that you may know how you should answer everyone.

I sent him to you for this very purpose, that you may know how we are doing and that he may encourage your hearts.