The Signs before the Day of Judgement

The Gospel of St. Matthew speaks to us about the tribulations and events that will take place before the final Judgement. This is what our Lord said:
“Immediately after the tribulation of those days,
the sun will be darkened,
and the moon will not give its light,
and the stars will fall from the sky,
and the powers of the heavens will be shaken.
30 And then the sign of the Son of Man will appear in heaven, and all the tribes of the earth will mourn, and they will see the Son of Man coming upon the clouds of heaven with power and great glory.
31 And he will send out his angels with a trumpet blast, and they will gather his elect from the four winds, from one end of the heavens to the other. " (Mt 24:29-31)

Our Lord spoke to St. Faustina and revealed to her some of the events that will take place before the Day of judgement. Interestingly enough the revelations to St. Faustina are in perfect agreement with Scripture, but provide a more detailed nature about the sign of the Son of Man that will appear in heaven. Jesus said to St. Faustina:
Write this: Before I come as the just Judge, I am coming first as the King of Mercy. Before the day of justice arrives, there will be given to people a sign in the heavens of this sort: All light in the heavens will be extinguished, and there will be great darkness over the whole earth. Then the sign of the cross will be seen in the sky, and from the openings where the hands and the feet of the Savior were nailed will come forth great lights which will light up the earth for a period of time. This will take place shortly before the last day (Diary, 83).

In Akita in the third message given to Sister Agnes, our Blessed Mother revealed to her about the upcoming chastisement if people do not repent and better themselves. In that apparition, our Lady also speaks in similar terms to those given by Scripture and St. Faustina, and predicts that the only thing remaining for the faithful in those days will be the Rosary and the sign left by her Son. Although one can think that this sign (also a reality) is probably the sacrament of the Eucharist, one can also argue that perhaps another possibility would be a sign left on the sky as predicted by Matthew and St. Faustina:
"As I told you, if men do not repent and better themselves, the Father will inflict a terrible punishment on all humanity. It will be a punishment greater than the deluge, such as one will never seen before. Fire will fall from the sky and will wipe out a great part of humanity, the good as well as the bad, sparing neither priests nor faithful. The survivors will find themselves so desolate that they will envy the dead. The only arms which will remain for you will be the Rosary and the Sign left by My Son. Each day recite the prayers of the Rosary. With the Rosary, pray for the Pope, the bishops and priests."
We are living in times of Grace and Mercy and the Lord keeps reminding us of that fact. There is a sense of URGENCY in those messages coming from private revelations in which God seems to be inviting humanity to change and to repent before it is too late. Will we heed the voice of God? Will we hear the voice of the Lord while there is still time or will we harden our hearts? The choice is ours!