'Disciplining' in the Bible

Keep in mind that the Lord your God has been disciplining you just as a man disciplines his son.

The one who spares his rod hates his child, but the one who loves his child is diligent in disciplining him.

(Yod) Let a person sit alone in silence, when the Lord is disciplining him.

No, I keep on disciplining my body, making it serve me so that after I have preached to others, I myself will not somehow be disqualified.