The reading for December 13 is Joel 1-2 and Revelation 4.
The passages below are courtesy of BibleGateway.
1 The Lord gave this message to Joel son of Pethuel.
2 Hear this, you leaders of the people.
Listen, all who live in the land.
In all your history,
has anything like this happened before?
3 Tell your children about it in the years to come,
and let your children tell their children.
Pass the story down from generation to generation.
4 After the cutting locusts finished eating the crops,
the swarming locusts took what was left!
After them came the hopping locusts,
and then the stripping locusts,[a] too!
5 Wake up, you drunkards, and weep!
Wail, all you wine-drinkers!
All the grapes are ruined,
and all your sweet wine is gone.
6 A vast army of locusts[b] has invaded my land,
a terrible army too numerous to count.
Its teeth are like lions’ teeth,
its fangs like those of a lioness.
7 It has destroyed my grapevines
and ruined my fig trees,
stripping their bark and destroying it,
leaving the branches white and bare.
8 Weep like a bride dressed in black,
mourning the death of her husband.
9 For there is no grain or wine
to offer at the Temple of the Lord.
So the priests are in mourning.
The ministers of the Lord are weeping.
10 The fields are ruined,
the land is stripped bare.
The grain is destroyed,
the grapes have shriveled,
and the olive oil is gone.
11 Despair, all you farmers!
Wail, all you vine growers!
Weep, because the wheat and barley—
all the crops of the field—are ruined.
12 The grapevines have dried up,
and the fig trees have withered.
The pomegranate trees, palm trees, and apple trees—
all the fruit trees—have dried up.
And the people’s joy has dried up with them.
13 Dress yourselves in burlap and weep, you priests!
Wail, you who serve before the altar!
Come, spend the night in burlap,
you ministers of my God.
For there is no grain or wine
to offer at the Temple of your God.
14 Announce a time of fasting;
call the people together for a solemn meeting.
Bring the leaders
and all the people of the land
into the Temple of the Lord your God,
and cry out to him there.
15 The day of the Lord is near,
the day when destruction comes from the Almighty.
How terrible that day will be!
16 Our food disappears before our very eyes.
No joyful celebrations are held in the house of our God.
17 The seeds die in the parched ground,
and the grain crops fail.
The barns stand empty,
and granaries are abandoned.
18 How the animals moan with hunger!
The herds of cattle wander about confused,
because they have no pasture.
The flocks of sheep and goats bleat in misery.
19 Lord, help us!
The fire has consumed the wilderness pastures,
and flames have burned up all the trees.
20 Even the wild animals cry out to you
because the streams have dried up,
and fire has consumed the wilderness pastures.
2 Sound the trumpet in Jerusalem[c]!
Raise the alarm on my holy mountain!
Let everyone tremble in fear
because the day of the Lord is upon us.
2 It is a day of darkness and gloom,
a day of thick clouds and deep blackness.
Suddenly, like dawn spreading across the mountains,
a great and mighty army appears.
Nothing like it has been seen before
or will ever be seen again.
3 Fire burns in front of them,
and flames follow after them.
Ahead of them the land lies
as beautiful as the Garden of Eden.
Behind them is nothing but desolation;
not one thing escapes.
4 They look like horses;
they charge forward like warhorses.[d]
5 Look at them as they leap along the mountaintops.
Listen to the noise they make—like the rumbling of chariots,
like the roar of fire sweeping across a field of stubble,
or like a mighty army moving into battle.
6 Fear grips all the people;
every face grows pale with terror.
7 The attackers march like warriors
and scale city walls like soldiers.
Straight forward they march,
never breaking rank.
8 They never jostle each other;
each moves in exactly the right position.
They break through defenses
without missing a step.
9 They swarm over the city
and run along its walls.
They enter all the houses,
climbing like thieves through the windows.
10 The earth quakes as they advance,
and the heavens tremble.
The sun and moon grow dark,
and the stars no longer shine.
11 The Lord is at the head of the column.
He leads them with a shout.
This is his mighty army,
and they follow his orders.
The day of the Lord is an awesome, terrible thing.
Who can possibly survive?
12 That is why the Lord says,
“Turn to me now, while there is time.
Give me your hearts.
Come with fasting, weeping, and mourning.
13 Don’t tear your clothing in your grief,
but tear your hearts instead.”
Return to the Lord your God,
for he is merciful and compassionate,
slow to get angry and filled with unfailing love.
He is eager to relent and not punish.
14 Who knows? Perhaps he will give you a reprieve,
sending you a blessing instead of this curse.
Perhaps you will be able to offer grain and wine
to the Lord your God as before.
15 Blow the ram’s horn in Jerusalem!
Announce a time of fasting;
call the people together
for a solemn meeting.
16 Gather all the people—
the elders, the children, and even the babies.
Call the bridegroom from his quarters
and the bride from her private room.
17 Let the priests, who minister in the Lord’s presence,
stand and weep between the entry room to the Temple and the altar.
Let them pray, “Spare your people, Lord!
Don’t let your special possession become an object of mockery.
Don’t let them become a joke for unbelieving foreigners who say,
‘Has the God of Israel left them?’”
18 Then the Lord will pity his people
and jealously guard the honor of his land.
19 The Lord will reply,
“Look! I am sending you grain and new wine and olive oil,
enough to satisfy your needs.
You will no longer be an object of mockery
among the surrounding nations.
20 I will drive away these armies from the north.
I will send them into the parched wastelands.
Those in the front will be driven into the Dead Sea,
and those at the rear into the Mediterranean.[e]
The stench of their rotting bodies will rise over the land.”
Surely the Lord has done great things!
21 Don’t be afraid, O land.
Be glad now and rejoice,
for the Lord has done great things.
22 Don’t be afraid, you animals of the field,
for the wilderness pastures will soon be green.
The trees will again be filled with fruit;
fig trees and grapevines will be loaded down once more.
23 Rejoice, you people of Jerusalem!
Rejoice in the Lord your God!
For the rain he sends demonstrates his faithfulness.
Once more the autumn rains will come,
as well as the rains of spring.
24 The threshing floors will again be piled high with grain,
and the presses will overflow with new wine and olive oil.
25 The Lord says, “I will give you back what you lost
to the swarming locusts, the hopping locusts,
the stripping locusts, and the cutting locusts.[f]
It was I who sent this great destroying army against you.
26 Once again you will have all the food you want,
and you will praise the Lord your God,
who does these miracles for you.
Never again will my people be disgraced.
27 Then you will know that I am among my people Israel,
that I am the Lord your God, and there is no other.
Never again will my people be disgraced.
28 [g]“Then, after doing all those things,
I will pour out my Spirit upon all people.
Your sons and daughters will prophesy.
Your old men will dream dreams,
and your young men will see visions.
29 In those days I will pour out my Spirit
even on servants—men and women alike.
30 And I will cause wonders in the heavens and on the earth—
blood and fire and columns of smoke.
31 The sun will become dark,
and the moon will turn blood red
before that great and terrible[h] day of the Lord arrives.
32 But everyone who calls on the name of the Lord
will be saved,
for some on Mount Zion in Jerusalem will escape,
just as the Lord has said.
These will be among the survivors
whom the Lord has called.
4 Then as I looked, I saw a door standing open in heaven, and the same voice I had heard before spoke to me like a trumpet blast. The voice said, “Come up here, and I will show you what must happen after this.” 2 And instantly I was in the Spirit,[a] and I saw a throne in heaven and someone sitting on it. 3 The one sitting on the throne was as brilliant as gemstones—like jasper and carnelian. And the glow of an emerald circled his throne like a rainbow. 4 Twenty-four thrones surrounded him, and twenty-four elders sat on them. They were all clothed in white and had gold crowns on their heads. 5 From the throne came flashes of lightning and the rumble of thunder. And in front of the throne were seven torches with burning flames. This is the sevenfold Spirit[b] of God. 6 In front of the throne was a shiny sea of glass, sparkling like crystal.
In the center and around the throne were four living beings, each covered with eyes, front and back. 7 The first of these living beings was like a lion; the second was like an ox; the third had a human face; and the fourth was like an eagle in flight. 8 Each of these living beings had six wings, and their wings were covered all over with eyes, inside and out. Day after day and night after night they keep on saying,
“Holy, holy, holy is the Lord God, the Almighty—
the one who always was, who is, and who is still to come.”
9 Whenever the living beings give glory and honor and thanks to the one sitting on the throne (the one who lives forever and ever), 10 the twenty-four elders fall down and worship the one sitting on the throne (the one who lives forever and ever). And they lay their crowns before the throne and say,
11 “You are worthy, O Lord our God,
to receive glory and honor and power.
For you created all things,
and they exist because you created what you pleased.”