Job 5:17-18 (NIV) 17 Blessed is the man whom God corrects; so do not despise the discipline of the Almighty. 18 For he wounds, but he also binds up; he injures, but his hands also heal.
Psalm 94:12-13 (NIV) 12 Blessed is the man you discipline, O LORD, the man you teach from your law; 13 you grant him relief from days of trouble, till a pit is dug for the wicked.
1 Corinthians 11:32 (NIV) When we are judged by the Lord, we are being disciplined so that we will not be condemned with the world.
"Discipline is a proof of our sonship." -- Erwin W. Lutzer (1941-)