For the word of God is quick, and powerful, and sharper than any two-edged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart. - Hebrews 4:12
Proverbs 3:11-12: "My son, do not despise the chastening of the LORD, nor detest His correction; for whom the LORD loves He corrects, just as a father the son in whom he delights."