19. Do not be guided by feeling, because it is not always under your control; but all merit lies in the will.
All merit lies in the will because love is an act of the will. We are completely free in Christ. We must make a choice, a decision for good or evil. What camp do we live in?
20. Always depend upon your superiors, even in the smallest things.
Christ is instructing a Religious here. But, we all have the Lord as our Superior. Dependence upon God is a weapon of spiritual warfare because we cannot win on our own. Proclaiming Christ’s victory over evil is part of intentional discipleship. Christ came to defeat death & evil. Proclaim Him!
21. I will not delude you with prospects of peace and consolations; on the contrary, prepare for great battles.
St. Faustina suffered physically and spiritually. She was prepared for great battles by the grace of God who upheld her. Christ clearly instructs us in scripture to be prepared for great battles, to put on God’s armor and resist the devil. Be vigilant and discerning always.