No, it's got nothing to do with reality TV. The X refers to Χ (chi), the first letter of Χριστος (Christ; the anointed one) in New Testament Greek. The word Χριστιανούς (Christian) was first used in reference to the followers of Christ in Acts 11.
Acts of the Apostles 11:19-26
Those who had scattered because of the persecution that arose over Stephen travelled as far as Phoenicia and Cyprus and Antioch, but they proclaimed the message only to Jews. Some of them, however, who came from Cyprus and Cyrene, went to Antioch where they started preaching also to the Greeks, proclaiming the good news of the Lord Jesus to them. The Lord helped them, and a great number believed and were converted to the Lord.
The news of them came to the ears of the church in Jerusalem and they sent Barnabas out to Antioch. There he was glad to see for himself that God had given grace, and he urged them all to remain faithful to the Lord with heartfelt devotion; for he was a good man, filled with the Holy Spirit and with faith. And a large number of people were won over to the Lord. Barnabas then left for Tarsus to look for Saul, and when he found him he brought him to Antioch. And it happened that they stayed together in that church a whole year, instructing a large number of people. It was at Antioch that the disciples were first called 'Christians'.
Artwork by Diane Leow
Reading for 19th Sunday in Ordinary Time - Year A - Sun, Aug 13, 2017
And at once he made the disciples get into the boat and go on ahead to the other side while he sent the crowds away. After sending the crowds away he went up into the hills by himself to pray. When evening came, he was there alone, while the boat, by now some furlongs from land, was hard pressed by rough waves, for there was a head-wind.
In the fourth watch of the night he came towards them, walking on the sea, and when the disciples saw him walking on the sea they were terrified. 'It is a ghost,' they said, and cried out in fear But at once Jesus called out to them, saying, 'Courage! It's me! Don't be afraid.'
It was Peter who answered. 'Lord,' he said, 'if it is you, tell me to come to you across the water.' Jesus said, 'Come.' Then Peter got out of the boat and started walking towards Jesus across the water but then noticing the wind, he took fright and began to sink. 'Lord,' he cried, 'save me!' Jesus put out his hand at once and held him. 'You have so little faith,' he said, 'why did you doubt? And as they got into the boat the wind dropped. The men in the boat bowed down before him and said, 'Truly, you are the Son of God.'
Reading for Easter Vigil - Year A - Sat, Apr 15, 2017
In the beginning God created heaven and earth. Now the earth was a formless void, there was darkness over the deep, with a divine wind sweeping over the waters. God said, 'Let there be light,' and there was light. God saw that light was good, and God divided light from darkness. God called light 'day', and darkness he called 'night'. Evening came and morning came: the first day.
God said, 'Let there be a vault through the middle of the waters to divide the waters in two.' And so it was. God made the vault, and it divided the waters under the vault from the waters above the vault. God called the vault 'heaven'. Evening came and morning came: the second day.
God said, 'Let the waters under heaven come together into a single mass, and let dry land appear.' And so it was. God called the dry land 'earth' and the mass of waters 'seas', and God saw that it was good. God said, 'Let the earth produce vegetation: seed-bearing plants, and fruit trees on earth, bearing fruit with their seed inside, each corresponding to its own species.' And so it was. The earth produced vegetation: the various kinds of seed-bearing plants and the fruit trees with seed inside, each corresponding to its own species. God saw that it was good. Evening came and morning came: the third day.
God said, 'Let there be lights in the vault of heaven to divide day from night, and let them indicate festivals, days and years. Let them be lights in the vault of heaven to shine on the earth.' And so it was. God made the two great lights: the greater light to govern the day, the smaller light to govern the night, and the stars. God set them in the vault of heaven to shine on the earth, to govern the day and the night and to divide light from darkness. God saw that it was good. Evening came and morning came: the fourth day.
God said, 'Let the waters be alive with a swarm of living creatures, and let birds wing their way above the earth across the vault of heaven.' And so it was. God created great sea-monsters and all the creatures that glide and teem in the waters in their own species, and winged birds in their own species. God saw that it was good. God blessed them, saying, 'Be fruitful, multiply, and fill the waters of the seas; and let the birds multiply on land.' Evening came and morning came: the fifth day.
God said, 'Let the earth produce every kind of living creature in its own species: cattle, creeping things and wild animals of all kinds.' And so it was. God made wild animals in their own species, and cattle in theirs, and every creature that crawls along the earth in its own species. God saw that it was good. God said, 'Let us make man in our own image, in the likeness of ourselves, and let them be masters of the fish of the sea, the birds of heaven, the cattle, all the wild animals and all the creatures that creep along the ground.' God created man in the image of himself, in the image of God he created him, male and female he created them. God blessed them, saying to them, 'Be fruitful, multiply, fill the earth and subdue it. Be masters of the fish of the sea, the birds of heaven and all the living creatures that move on earth.' God also said, 'Look, to you I give all the seed-bearing plants everywhere on the surface of the earth, and all the trees with seed-bearing fruit; this will be your food. And to all the wild animals, all the birds of heaven and all the living creatures that creep along the ground, I give all the foliage of the plants as their food.' And so it was. God saw all he had made, and indeed it was very good. Evening came and morning came: the sixth day.
Thus heaven and earth were completed with all their array. On the seventh day God had completed the work he had been doing. He rested on the seventh day after all the work he had been doing.
Artwork by Philip Lee
Reading for 28th Sunday in Ordinary Time - Year B - Sun, Oct 14, 2018
He was setting out on a journey when a man ran up, knelt before him and put this question to him, 'Good master, what must I do to inherit eternal life?' Jesus said to him, 'Why do you call me good? No one is good but God alone. You know the commandments: You shall not kill; You shall not commit adultery; You shall not steal; You shall not give false witness; You shall not defraud; Honour your father and mother.' And he said to him, 'Master, I have kept all these since my earliest days.' Jesus looked steadily at him and he was filled with love for him, and he said, 'You need to do one thing more. Go and sell what you own and give the money to the poor, and you will have treasure in heaven; then come, follow me.' But his face fell at these words and he went away sad, for he was a man of great wealth. Jesus looked round and said to his disciples, 'How hard it is for those who have riches to enter the kingdom of God!' The disciples were astounded by these words, but Jesus insisted, 'My children,' he said to them, 'how hard it is to enter the kingdom of God! It is easier for a camel to pass through the eye of a needle than for someone rich to enter the kingdom of God.' They were more astonished than ever, saying to one another, 'In that case, who can be saved?' Jesus gazed at them and said, 'By human resources it is impossible, but not for God: because for God everything is possible.'
Artwork by Elaine Tsui
Reading for All Saints - Year A - Wed, Nov 01, 2017
Seeing the crowds, he went onto the mountain. And when he was seated his disciples came to him. Then he began to speak. This is what he taught them: How blessed are the poor in spirit: the kingdom of Heaven is theirs. Blessed are the gentle: they shall have the earth as inheritance. Blessed are those who mourn: they shall be comforted. Blessed are those who hunger and thirst for uprightness: they shall have their fill. Blessed are the merciful: they shall have mercy shown them. Blessed are the pure in heart: they shall see God. Blessed are the peacemakers: they shall be recognised as children of God. Blessed are those who are persecuted in the cause of uprightness: the kingdom of Heaven is theirs. Blessed are you when people abuse you and persecute you and speak all kinds of calumny against you falsely on my account. Rejoice and be glad, for your reward will be great in heaven.
Reading for 3rd Sunday of Advent - Year C - Sun, Dec 16, 2018
"Always be joyful, then, in the Lord; I repeat, be joyful. Let your good sense be obvious to everybody. The Lord is near. Never worry about anything; but tell God all your desires of every kind in prayer and petition shot through with gratitude, and the peace of God which is beyond our understanding will guard your hearts and your thoughts in Christ Jesus.
Finally, brothers, let your minds be filled with everything that is true, everything that is honourable, everything that is upright and pure, everything that we love and admire -- with whatever is good and praiseworthy. Keep doing everything you learnt from me and were told by me and have heard or seen me doing. Then the God of peace will be with you."
You have made us for yourself, O Lord, and our hearts are restless until they find their rest in you.
~ St Augustine of Hippo, Confessions
Yes, I know what plans I have in mind for you, the Lord declares, plans for peace, not for disaster, to give you a future and a hope. When you call to me and come and pray to me, I shall listen to you. When you search for me, you will find me; when you search wholeheartedly for me, I shall let you find me (the Lord declares. I shall restore your fortunes and gather you in from all the nations and wherever I have driven you, the Lord declares. I shall bring you back to the place from which I exiled you).