"When the thrones are set up, and the books are opened..."

Icon of the Second Coming of Christ and the Last Judgment (source)

  
When the thrones are set up, and the books are opened, and God comes to sit in judgment, O, what fear will be then! Angels stand around in fear, and the river of fire is drawn. O, what will we guilty people do then, who are in many sins? When we hear the calling of the blessed from the Father unto the Kingdom, the sinners will be sent unto perdition, and who will endure that terrible sentence? But You, O only Savior Who loves mankind, the King of the ages, before I reach my end, turn me back through repentance, and have mercy on me.


Having come to know the commandments of the Lord, let us do them. Let us feed the hungry, let us give drink to the thirsty, let us clothe the naked, let us enter in to the houses of the sick and visit those in prison, that He might say to us, when He comes to judge the whole earth: Come, the blessed of my Father, inherit the Kingdom that has been prepared for you.
-Idiomela from the Sunday of the Last Judgment
  
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Jesus Christ coming on the clouds of glory at His Second Coming, to judge the living and the dead (source)

  

Through the prayers of our Holy Fathers, Lord Jesus Christ our God, have mercy on us and save us! Amen!