Why did Jesus, the Son of God, have to atone? Good question. Not every offense carries the same gravity or punishment, even if the offense is identical. Allow me, gentle, kind reader.
I want to use a disturbing example, indulge me kind reader, indulge me, I beg. Imagine throwing a rotten tomato at a sleeping or unconscious homeless person in an alley, no witnesses. Terrible, I realize, but it helps to make the point. What penalty will you suffer? Very likely none, if that child of God even awakes, or is able. What if you threw the same rotten tomato at the President of the US? You might have a problem. My point, and the Church’s, is reason demands it depends on the dignity of the person so offended. It does. “Remember, money doesn’t go to jail”, as the saying goes, tragically. The penalty will, must, by reason reflect the dignity of the personage so offended.
Now imagine God, and offending His infinite majesty. This is sin. What is the penalty? Terrifyingly infinite, but still, proportionate. Who can atone for even the least modicum of offense against God? Only God. See? Makes sense, doesn’t it? That’s the scary part, if you are willing and study, you will see again, and again, the reasonableness and infinite mercy of Christ’s salvation. You will. Do you dare? Will this knowledge, this awareness have consequences, implications to you and your life and how it is lived? Will you do the hard, long work of examination of your own conscience? Will you convict yourself? I hope so. I pray so. It will be accounted. The salvation of our souls is real. Pray for me and mine, I beg you. I truly do. Recall, justice is a mercy to the offended mortal.
“It would not be out of place at this point to recall the relationship between justice and mercy. These are not two contradictory realities, but two dimensions of a single reality that unfolds progressively until it culminates in the fullness of love.”-Pope Francis, Misericordiae Vultus, §20
From the Dialogue of St. Catherine of Siena, OP, (1347-1380), Doctor of the Church, recording God’s words to her:
“This is why I gave the world my only-begotten Son. The clay of humankind was spoiled by the sin of the first man, Adam, and so all of you, as vessels made from clay, were spoiled and unfit to hold eternal life. So to undo the corruption and death of humankind and to bring you back to the grace you had lost through sin, I, exaltedness, united Myself with the baseness of your humanity. For my divine justice demanded suffering in atonement for sin. But I cannot suffer. And you, being only human, cannot make adequate atonement. Even if you did atone for some particular thing, you still could make atonement only for yourself and not for others. But for this sin you could not make full atonement either for yourself or for others since it was committed against Me, and I am Infinite Goodness.
Yet I really wanted to restore you, incapable as you were of making atonement for yourself. And because you were so utterly handicapped, I sent the Word, my Son; I clothed Him with the same nature as yours—the spoiled clay of Adam—so that He could suffer in that same nature which had sinned, and by suffering in His body even to the extent of the shameful death of the cross He would placate My anger.
And so I satisfied both My justice and My divine mercy. For My mercy wanted to atone for your sin and make you fit to receive the good for which I had created you. Humanity, when united with divinity, was able to make atonement for the whole human race—not simply through suffering in its finite nature, that is, in the clay of Adam, but by virtue of the eternal divinity, the infinite divine nature. In the union of these two natures I received and accepted the sacrifice of My only-begotten Son’s blood, steeped and kneaded with his divinity into the one bread, which the heat of My divine love held nailed to the cross. Thus was human nature enabled to atone for its sin only by virtue of the divine nature.”
Love, and constantly needing His mercy,
Matthew
Summa Catechetica, "Neque enim quaero intelligere ut credam, sed credo ut intelligam." – St Anselm, "“Si comprehendus, non est Deus.” -St Augustine, "Let your religion be less of a theory, and more of a love affair." -G.K. Chesterton, “When we pray we speak to God; but when we read, God speaks to us.” -St Jerome, "As the reading of bad books fills the mind with worldly and poisonous sentiments; so, on the other hand, the reading of pious works fills the soul with holy thoughts and good desires." -St. Alphonsus Liguori, "And above all, be on your guard not to want to get anything done by force, because God has given free will to everyone and wants to force no one, but only proposes, invites and counsels." –St. Angela Merici, “Yet such are the pity and compassion of this Lord of ours, so desirous is He that we should seek Him and enjoy His company, that in one way or another He never ceases calling us to Him . . . God here speaks to souls through words uttered by pious people, by sermons or good books, and in many other such ways.” —St. Teresa of Avila, "I want a laity, not arrogant, not rash in speech, not disputatious, but men and women who know their religion, who enter into it, who know just where they stand, who know what they hold and what they do not, and who know their creed so well that they can give an account of it, who know so much of history that they can defend it. I want an intelligent, well-instructed laity… I wish you to enlarge your knowledge, to cultivate your reason, to get an insight into the relation of truth to truth, to learn to view things as they are, to understand how faith and reason stand to each other, what are the bases and principles of Catholicism, and where lie the main inconsistences and absurdities of the Protestant theory.” (St. John Henry Newman, “Duties of Catholics Towards the Protestant View,” Lectures on the Present Position of Catholics in England), "We cannot always have access to a spiritual Father for counsel in our actions and in our doubts, but reading will abundantly supply his place by giving us directions to escape the illusions of the devil and of our own self-love, and at the same time to submit to the divine will.” —St. Alphonsus Ligouri, "The harm that comes to souls from the lack of reading holy books makes me shudder . . . What power spiritual reading has to lead to a change of course, and to make even worldly people enter into the way of perfection." –St. Padre Pio, "Screens may grab our attention, but books change our lives!" – Word on Fire, "Reading has made many saints!" -St Josemaría Escrivá, "Do you pray? You speak to the Bridegroom. Do you read? He speaks to you." —St. Jerome, from his Letter 22 to Eustochium, "Encounter, not confrontation; attraction, not promotion; dialogue, not debate." -cf Pope Francis, "God here speaks to souls through…good books“ – St Teresa of Avila, Interior Castle, "You will not see anyone who is really striving after his advancement who is not given to spiritual reading. And as to him who neglects it, the fact will soon be observed by his progress.” -St Athanasius, "To convert someone, go and take them by the hand and guide them." -St Thomas Aquinas, OP. 1 saint ruins ALL the cynicism in Hell & on Earth. “When we pray we talk to God; when we read God talks to us…All spiritual growth comes from reading and reflection.” -St Isidore of Seville, “Also in some meditations today I earnestly asked our Lord to watch over my compositions that they might do me no harm through the enmity or imprudence of any man or my own; that He would have them as His own and employ or not employ them as He should see fit. And this I believe is heard.” -GM Hopkins, SJ, "Only God knows the good that can come about by reading one good Catholic book." — St. John Bosco, "Why don't you try explaining it to them?" – cf St Peter Canisius, SJ, Doctor of the Church, Doctor of the Catechism, "Already I was coming to appreciate that often apologetics consists of offering theological eye glasses of varying prescriptions to an inquirer. Only one prescription will give him clear sight; all the others will give him at best indistinct sight. What you want him to see—some particular truth of the Faith—will remain fuzzy to him until you come across theological eye glasses that precisely compensate for his particular defect of vision." -Karl Keating, "The more perfectly we know God, the more perfectly we love Him." -St Thomas Aquinas, OP, ST, I-II,67,6 ad 3, “But always when I was without a book, my soul would at once become disturbed, and my thoughts wandered." —St. Teresa of Avila, "Let those who think I have said too little and those who think I have said too much, forgive me; and let those who think I have said just enough thank God with me." –St. Augustine, "Without good books and spiritual reading, it will be morally impossible to save our souls." —St. Alphonsus Liguori "Never read books you aren't sure about. . . even supposing that these bad books are very well written from a literary point of view. Let me ask you this: Would you drink something you knew was poisoned just because it was offered to you in a golden cup?" -St. John Bosco " To teach in order to lead others to faith is the task of every preacher and of each believer." —St. Thomas Aquinas, OP. "Prayer purifies us, reading instructs us. Both are good when both are possible. Otherwise, prayer is better than reading." –St. Isidore of Seville “The aid of spiritual books is for you a necessity.… You, who are in the midst of battle, must protect yourself with the buckler of holy thoughts drawn from good books.” -St. John Chrysostom