The Roman Catholic Church, according to the General Roman Calendar, celebrates the following in Sunday, 2019-06-23:
Gn 14:18-20
In those days, Melchizedek, king of Salem, brought out bread and wine,
and being a priest of God Most High,
he blessed Abram with these words:
"Blessed be Abram by God Most High,
the creator of heaven and earth;
and blessed be God Most High,
who delivered your foes into your hand."
Then Abram gave him a tenth of everything.
Ps 110:1, 2, 3, 4
R. (4b)
You are a priest for ever, in the line of Melchizedek.
The LORD said to my Lord: "Sit at my right hand
till I make your enemies your footstool."
R.You are a priest for ever, in the line of Melchizedek.
The scepter of your power the LORD will stretch forth from Zion:
"Rule in the midst of your enemies."
R.You are a priest for ever, in the line of Melchizedek.
"Yours is princely power in the day of your birth, in holy splendor;
before the daystar, like the dew, I have begotten you."
R.You are a priest for ever, in the line of Melchizedek.
The LORD has sworn, and he will not repent:
"You are a priest forever, according to the order of Melchizedek."
R.You are a priest for ever, in the line of Melchizedek.
1 Cor 11:23-26
Brothers and sisters:
I received from the Lord what I also handed on to you,
that the Lord Jesus, on the night he was handed over,
took bread, and, after he had given thanks,
broke it and said, "This is my body that is for you.
Do this in remembrance of me."
In the same way also the cup, after supper, saying,
"This cup is the new covenant in my blood.
Do this, as often as you drink it, in remembrance of me."
For as often as you eat this bread and drink the cup,
you proclaim the death of the Lord until he comes.
Lk 9:11b-17
Jesus spoke to the crowds about the kingdom of God,
and he healed those who needed to be cured.
As the day was drawing to a close,
the Twelve approached him and said,
"Dismiss the crowd
so that they can go to the surrounding villages and farms
and find lodging and provisions;
for we are in a deserted place here."
He said to them, "Give them some food yourselves."
They replied, "Five loaves and two fish are all we have,
unless we ourselves go and buy food for all these people."
Now the men there numbered about five thousand.
Then he said to his disciples,
"Have them sit down in groups of about fifty."
They did so and made them all sit down.
Then taking the five loaves and the two fish,
and looking up to heaven,
he said the blessing over them, broke them,
and gave them to the disciples to set before the crowd.
They all ate and were satisfied.
And when the leftover fragments were picked up,
they filled twelve wicker baskets.
Zec 12:10-11;13:1
Thus says the LORD:
I will pour out on the house of David
and on the inhabitants of Jerusalem
a spirit of grace and petition;
and they shall look on him whom they have pierced,
and they shall mourn for him as one mourns for an only son,
and they shall grieve over him as one grieves over a firstborn.
On that day the mourning in Jerusalem shall be as great
as the mourning of Hadadrimmon in the plain of Megiddo.
On that day there shall be open to the house of David
and to the inhabitants of Jerusalem,
a fountain to purify from sin and uncleanness.
Ps 63:2, 3-4, 5-6, 8-9
R. (2b)
My soul is thirsting for you, O Lord my God.
O God, you are my God whom I seek;
for you my flesh pines and my soul thirsts
like the earth, parched, lifeless and without water.
R.My soul is thirsting for you, O Lord my God.
Thus have I gazed toward you in the sanctuary
to see your power and your glory,
For your kindness is a greater good than life;
my lips shall glorify you.
R.My soul is thirsting for you, O Lord my God.
Thus will I bless you while I live;
lifting up my hands, I will call upon your name.
As with the riches of a banquet shall my soul be satisfied,
and with exultant lips my mouth shall praise you.
R.My soul is thirsting for you, O Lord my God.
You are my help,
and in the shadow of your wings I shout for joy.
My soul clings fast to you;
your right hand upholds me.
R.My soul is thirsting for you, O Lord my God.
Gal 3:26-29
Brothers and sisters:
Through faith you are all children of God in Christ Jesus.
For all of you who were baptized into Christ
have clothed yourselves with Christ.
There is neither Jew nor Greek,
there is neither slave nor free person,
there is not male and female;
for you are all one in Christ Jesus.
And if you belong to Christ,
then you are Abraham’s descendant,
heirs according to the promise.
Lk 9:18-24
Once when Jesus was praying in solitude,
and the disciples were with him,
he asked them, "Who do the crowds say that I am?"
They said in reply, "John the Baptist;
others, Elijah;
still others, ‘One of the ancient prophets has arisen.’"
Then he said to them, "But who do you say that I am?"
Peter said in reply, "The Christ of God."
He rebuked them
and directed them not to tell this to anyone.
He said, "The Son of Man must suffer greatly
and be rejected by the elders, the chief priests, and the scribes,
and be killed and on the third day be raised."
Then he said to all,
"If anyone wishes to come after me, he must deny himself
and take up his cross daily and follow me.
For whoever wishes to save his life will lose it,
but whoever loses his life for my sake will save it."