The Roman Catholic Church, according to the General Roman Calendar, celebrates the following in Sunday, 2018-04-29:
1 John 1:5--2:2
15This is the message we have heard from him and proclaim to you, that God is light and in him is no darkness at all. 6If we say we have fellowship with him while we walk in darkness, we lie and do not live according to the truth;7but if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus his Son cleanses us from all sin. 8If we say we have no sin, we deceive ourselves, and the truth is not in us. 9If we confess our sins, he is faithful and just, and will forgive our sins and cleanse us from all unrighteousness. 10If we say we have not sinned, we make him a liar, and his word is not in us.21My little children, I am writing this to you so that you may not sin;but if any one does sin, we have an advocate with the Father, Jesus Christ the righteous;2and he is the expiation for our sins, and not for ours only but also for the sins of the whole world.
Psalms 103:1-4, 8-9, 13-14, 17-18
1Bless the LORD, O my soul;and all that is within me, bless his holy name! 2Bless the LORD, O my soul, and forget not all his benefits, 3who forgives all your iniquity, who heals all your diseases, 4who redeems your life from the Pit, who crowns you with steadfast love and mercy, 8The LORD is merciful and gracious, slow to anger and abounding in steadfast love. 9He will not always chide, nor will he keep his anger for ever. 13As a father pities his children, so the LORD pities those who fear him. 14For he knows our frame;he remembers that we are dust. 17But the steadfast love of the LORD is from everlasting to everlasting upon those who fear him, and his righteousness to children's children, 18to those who keep his covenant and remember to do his commandments.
John 12:44-50
44And Jesus cried out and said, "He who believes in me, believes not in me but in him who sent me. 45And he who sees me sees him who sent me. 46I have come as light into the world, that whoever believes in me may not remain in darkness. 47If any one hears my sayings and does not keep them, I do not judge him;for I did not come to judge the world but to save the world. 48He who rejects me and does not receive my sayings has a judge;the word that I have spoken will be his judge on the last day. 49For I have not spoken on my own authority;the Father who sent me has himself given me commandment what to say and what to speak. 50And I know that his commandment is eternal life. What I say, therefore, I say as the Father has bidden me."
Matthew 11:25-30
25At that time Jesus declared, "I thank thee, Father, Lord of heaven and earth, that thou hast hidden these things from the wise and understanding and revealed them to babes;26yea, Father, for such was thy gracious will. 27All things have been delivered to me by my Father;and no one knows the Son except the Father, and no one knows the Father except the Son and any one to whom the Son chooses to reveal him. 28Come to me, all who labor and are heavy laden, and I will give you rest. 29Take my yoke upon you, and learn from me;for I am gentle and lowly in heart, and you will find rest for your souls. 30For my yoke is easy, and my burden is light."
Acts 9:26-31
When Saul arrived in Jerusalem he tried to join the disciples,
but they were all afraid of him,
not believing that he was a disciple.
Then Barnabas took charge of him and brought him to the apostles,
and he reported to them how he had seen the Lord,
and that he had spoken to him,
and how in Damascus he had spoken out boldly in the name of Jesus.
He moved about freely with them in Jerusalem,
and spoke out boldly in the name of the Lord.
He also spoke and debated with the Hellenists,
but they tried to kill him.
And when the brothers learned of this,
they took him down to Caesarea
and sent him on his way to Tarsus.
The church throughout all Judea, Galilee, and Samaria was at peace.
It was being built up and walked in the fear of the Lord,
and with the consolation of the Holy Spirit it grew in numbers.
Ps 22:26-27, 28, 30, 31-32
R. (26a)
I will praise you, Lord, in the assembly of your people.
or:
R.Alleluia.
I will fulfill my vows before those who fear the LORD.
The lowly shall eat their fill;
they who seek the LORD shall praise him:
"May your hearts live forever!"
R.I will praise you, Lord, in the assembly of your people.
or:
R.Alleluia.
All the ends of the earth
shall remember and turn to the LORD;
all the families of the nations
shall bow down before him.
R.I will praise you, Lord, in the assembly of your people.
or:
R.Alleluia.
To him alone shall bow down
all who sleep in the earth;
before him shall bend
all who go down into the dust.
R.I will praise you, Lord, in the assembly of your people.
or:
R.Alleluia.
And to him my soul shall live;
my descendants shall serve him.
Let the coming generation be told of the LORD
that they may proclaim to a people yet to be born
the justice he has shown.
R.I will praise you, Lord, in the assembly of your people.
or:
R.Alleluia.
1 Jn 3:18-24
Children, let us love not in word or speech
but in deed and truth.
Now this is how we shall know that we belong to the truth
and reassure our hearts before him
in whatever our hearts condemn,
for God is greater than our hearts and knows everything.
Beloved, if our hearts do not condemn us,
we have confidence in God
and receive from him whatever we ask,
because we keep his commandments and do what pleases him.
And his commandment is this:
we should believe in the name of his Son, Jesus Christ,
and love one another just as he commanded us.
Those who keep his commandments remain in him, and he in them,
and the way we know that he remains in us
is from the Spirit he gave us.
Jn 15:1-8
Jesus said to his disciples:
"I am the true vine, and my Father is the vine grower.
He takes away every branch in me that does not bear fruit,
and every one that does he prunes so that it bears more fruit.
You are already pruned because of the word that I spoke to you.
Remain in me, as I remain in you.
Just as a branch cannot bear fruit on its own
unless it remains on the vine,
so neither can you unless you remain in me.
I am the vine, you are the branches.
Whoever remains in me and I in him will bear much fruit,
because without me you can do nothing.
Anyone who does not remain in me
will be thrown out like a branch and wither;
people will gather them and throw them into a fire
and they will be burned.
If you remain in me and my words remain in you,
ask for whatever you want and it will be done for you.
By this is my Father glorified,
that you bear much fruit and become my disciples."