44 “For this reason you also must be ready; for the Son of Man is coming at an hour when you do not think He will.
45 “Who then is the faithful and sensible slave whom his master put in charge of his household to give them their food at the proper time?
46 “Blessed is that slave whom his master finds so doing when he comes.
47 “Truly I say to you that he will put him in charge of all his possessions.
48 “But if that evil slave says in his heart, ‘My master is not coming for a long time,’
49 and begins to beat his fellow slaves and eat and drink with drunkards;
50 the master of that slave will come on a day when he does not expect him and at an hour which he does not know,
51 and will cut him in pieces and assign him a place with the hypocrites; in that place there will be weeping and gnashing of teeth.” Matthew 24:42-51.
This message is simple and clear. “”Therefore be on the alert, for you do not know which day your Lord is coming.” Matthew 24:42. Verses 46 though 51 show the judgment.
The Apostle’s Creed simply states: “… he shall come to judge the quick and the dead.”
The Belgic Confession covers this Last Judgment at length in Article 37. It states in part: “… the dead (will be) judged according to what they shall have done in this world, whether it be good or evil. Nay, all men shall give an account of every idle word they have spoken, which the world only counts amusement and jest: and then the secrets and hypocrisy of men shall be disclosed and laid open before all. And therefore the consideration of this judgment, is justly terrible and dreadful to the wicked and ungodly, but most desirable and comfortable to the righteous and elect: because then their full deliverance shall be perfected, and there they shall receive the fruits of their labor and trouble which they have borne. Their innocence shall be known to all, and they shall see the terrible vengeance which God shall execute on the wicked, who most cruelly persecuted, oppressed and tormented them in this world; and who shall be convicted by the testimony of their own consciences, and being immortal, shall be tormented in that everlasting fire, which is prepared for the devil and his angels. But on the contrary, the faithful and elect shall be crowned with glory and honor; and the Son of God will confess their names before God his Father, and his elect angels; all tears shall be wiped from their eyes; and their cause which is now condemned by many judges and magistrates, as heretical and impious, will then be known to be the cause of the Son of God. And for a gracious reward, the Lord will cause them to possess such a glory, as never entered into the heart of man to conceive. Therefore we expect that great day with a most ardent desire to the end that we may fully enjoy the promises of God in Christ Jesus our Lord. AMEN.”
Here is the link to all of Article 37 – Click here: The Belgic Confession of Faith
The Heidelberg Catechism focuses on the comfort to the believer of this judgment:
“Question 52. What comfort is it to thee that “Christ shall come again to judge the quick and the dead”?
Answer. That in all my sorrows and persecutions, with uplifted head I look for the very same person, who before offered himself for my sake, to the tribunal of God, and has removed all curse from me, to come as judge from heaven: who shall cast all his and my enemies into everlasting condemnation, but shall translate me with all his chosen ones to himself, into heavenly joys and glory.”
Reformed Doctrine Daily Devotions 