In the private revelation of the Lord to St. Faustina Kowalska, He told her to paint Him with two rays irradiating from His heart, his right hand blessing - the painting of the Divine Mercy - and below, these words: Jesus, I trust in you.
What does the Lord tell us, poor sinners, with His promise of mercy? While only the reading of her diary, "Divine Mercy in my soul", is able to truly allow us to start grasping the answer, I can tell you that it shows us - perhaps more clearly than ever - the Lord's ineffable love towards sinners moved to repentance. To them, forgiveness is always open, because, as St. Thomas Aquinas once said, Deus non alligatur sacramentis - God is not tied to His Sacraments.
Your concern is understandable: the Lord establishes His Church on earth, and gives Her wonderful gifts, the seven Sacraments, among which is Reconciliation. Where does one go, when one is not allowed to confess? Where else shall we go, if not to Christ?
Was not our pastor St. Peter who, with a similar question, made his profession of faith?
And Simon Peter answered him: Lord, to whom shall we go? thou hast the words of eternal life. And we have believed and have known, that thou art the Christ, the Son of God.
You may have already learned in RCIA that when you confess, the priest is not acting as himself, but in persona Christi: it is to Christ Himself that you are confessing, it is Christ Himself who absolves you. Until that blessed day, there is nothing to do other than pray and hope, living with a penitent heart. If you do so, rest assured that Christ Jesus is not far from you - close your eyes, and you may find Him in your heart.
This is my advice: fear nothing, trust in Christ!
Didn't the Holy Spirit speak through the psalmist saying:
A broken and a contrite heart, O God, You will not despise. The Lord is near to them that are of a broken heart; and saves such as be of a contrite spirit.
And didn't the prophet Isaiah speak of the Christ with these words:
thus saith the high and lofty One that inhabiteth eternity, and whose name is Holy: "I dwell in the high and holy place, and with him that is of a contrite and humble spirit, to revive the spirit of the humble, and to revive the heart of the contrite ones."
And didn't the Church accept as authentic the private revelation of our Lord to St. Faustina, announcing the infinite depth of His divine mercy towards sinners, and his immense, eternal love towards penitent souls? As you read these words from her Diary, ask yourself: now that you have repented and are firmly resolved to confess as soon as Holy Church allows you to do so, have you anything left to fear?
Let the sinner not be afraid to approach Me. ...] Call upon My mercy on behalf of sinners; I desire their salvation. ...] When I was dying on the cross, I was not thinking about Myself, but about poor sinners, and I prayed for them to My Father.
[Let] the greatest sinners place their trust in My mercy. They have the right before others to trust in the abyss of My mercy. ...] Souls that make an appeal to My mercy delight Me. To such souls I grant even more graces than they ask. I cannot punish even the greatest sinner if he makes an appeal to My compassion, but on the contrary, justify him in My unfathomable and inscrutable mercy. Write: before I come as a just Judge, I first open wide the door of My mercy.
[W]rite that I am more generous toward sinners than toward the just. It was for their sake that I came down from heaven; it was for their sake that My Blood was spilled. Let them not fear to approach Me; they are most in need of My mercy.
*"Suddenly, God's presence took hold of me, and at once I saw myself in Rome, in the Holy Father's chapel
and at the same time I was in our chapel.
I saw the Lord Jesus in our chapel, exposed in the monstrance on the high altar.
The same celebration was held in Rome, in a beautiful church, and the Holy Father, with all the clergy, was celebrating this Feast
Then, in an instant, I was caught up to stand near Jesus,
and I stood on the altar next to the Lord Jesus,
and my spirit was filled with a happiness so great
that I am unable to comprehend it or write about it"*
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