'Know' in the Bible

For I desire to have you know how greatly I struggle for you, and for those at Laodicea, and for as many as have not seen my face in the flesh;

that their hearts may be comforted, they being knit together in love, and gaining all riches of the full assurance of understanding, that they may know the mystery of God, both of the Father and of Christ,

Let your speech always be with grace, seasoned with salt, that you may know how you ought to answer each one.

I am sending him to you for this very purpose, that he may know your circumstances and comfort your hearts,