Courage is the most fundamental of all virtues.

Discouragement is contagious and is easily transmitted to others.

Protection of human life can be costly; but so is the neglect of that protection.

Moses warned them [Israelites] that the leading spiritual danger they would face on entering the [promise] land would be forgetting the Lord. What adversity would not do, prosperity and satisfaction could. They were to be on their guard against spiritual lethargy.

God is not naïve in the giving of His laws; He anticipates our disobedience even as He commands our obedience.

Some believers tend to forget God's persistent faithfulness in the face of the spectacular and showy.

Moses simplifies the whole duty of Israel (and of humanity) by crystalizing the moral law into a single command to love God supremely.