For the kingdom of God is not a matter of eating and drinking but of righteousness and peace and joy in the Holy Spirit.
– Romans 14:17
May the God of hope fill you with all joy and peace in believing, so that by the power of the Holy Spirit you may abound in hope.
– Romans 15:13
But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, self-control; against such things there is no law. And those who belong to Christ Jesus have crucified the flesh with its passions and desires.
– Galatians 5:22-24
Oh infatuated men, what is this blindness, or rather madness, which possesses you?… Depraved by good fortune, and not chastened by adversity, what you desire in the restoration of a peaceful and secure state, is not the tranquility of the commonwealth, but the impunity of your own vicious luxury. Scipio wished you to be hard pressed by an enemy, that you might not abandon yourselves to luxurious manners; but so abandoned are you, that not even when crushed by the enemy is your luxury repressed. You have missed the profit of your calamity; you have been made most wretched, and have remained most profligate.
– St. Augustine, City of God, Book I, Chap. 33
And that you are yet alive is due to God, who spares you that you may be admonished to repent and reform your lives. It is He who has permitted you, ungrateful as you are, to escape the sword of the enemy, by calling yourselves His servants, or by finding asylum in the sacred places of the martyrs…
– St. Augustine, City of God, Book I, Chap. 34