Every Sunday, and also on solemn Feast days, Christians make a public declaration of their faith in God, Father, Son, and Holy Spirit, using the words of the Nicene Creed — which we will all say together in a few minutes time. This statement of belief was drawn up seventeen hundred years ago at the First Ecumenical Council, which was called by the Roman Emperor Constantine to sort out divisions within the Church concerning the Divinity of Jesus Christ. The council met at Nicaea in Asia Minor (modern day Turkey) and comprised of three hundred and eighteen bishops of the Church. One of these was Nicholas of Myra, St Nicholas, the patron saint of this church. 

Questions about belief matter. They have the potential to divide the Church. Taking it away from its core purpose of being united in a common faith, and making a consistent proclamation of that faith. This is the situation in today’s reading from the Acts of the Apostles. Having been promised the Holy Spirit by Our Lord at His Ascension, the disciples wait and pray. At Pentecost they are filled with the Spirit. Emboldened, they are able to tell Jews from all over the Mediterranean world, who have gathered in Jerusalem, who Jesus is, and what He has done. From this moment on the disciples are known as Apostles from the Greek ἀπόστολος (meaning one who is sent, a messenger). The message they deliver is that all people should repent and believe the Good News of Jesus Christ. 

The outpouring of the Holy Spirit is not a one-off event, but rather a permanent state of affairs. This is how God continues to be active in the world: inspiring and strengthening Christ’s followers in living and proclaiming their faith. In John’s Gospel, Jesus promises His disciples:

‘Os ydych yn fy ngharu i, fe gadwch fy ngorchmynion i. Ac fe ofynnaf finnau i’m Tad, ac fe rydd ef i chwi Eiriolwr arall i fod gyda chwi am byth,’

‘If you love me, you will keep my commandments. And I will ask the Father, and he will give you another Helper, to be with you for ever.’ (Jn 14:15-16)

The promise is that God’s Spirit will be present in perpetuity. God will continue to pour out His Spirit to strengthen the Church. This is what we are celebrating today at Pentecost. Indeed, during the Eucharistic Prayer I, as your priest,  will pray that God continues to do this and ‘trwy nerth dy Ysbryd, i’r rhoddion hyn o fara a gwin fod i ni ei gorff a’i waed ef’ ‘that, by the power of your [God’s] Spirit, these gifts of bread and wine may be for us his body and blood’. Our heavenly Father makes wonderful things happen. Disciples who have been scared and have been in hiding are transformed into fearless evangelists, going out to preach Christ’s message of love and forgiveness. They become enthusiastic fellow-workers in the vineyard. God is able to completely change people and situations, because His love for us knows no bounds.  

The 318 bishops, who met at Nicaea, in 325AD, were able to put into words what Christians believe because they began their deliberations by praying for the gift of the Holy Spirit to guide and direct their thoughts and actions. This is entirely in line with Our Lord’s teaching in the Gospel: 

‘Ond bydd yr Eiriolwr, yr Ysbryd Glân, a anfona’r Tad yn fy enw i, yn dysgu popeth ichwi, ac yn dwyn ar gof ichwi y cwbl a ddywedais i wrthych.’

‘But the Helper, the Holy Spirit, whom the Father will send in my name, he will teach you all things and bring to your remembrance all that I have said to you.’ (Jn 14:26)

The Bishops, including St Nicholas, were strengthened by God to proclaim the truth, and to bear witness to it, in the face of those who would deny it. They bore witness to the truth of Jesus Christ: true God and true man, who promised the gift of the Holy Spirit. God’s Spirit gives Christians strength and brings us together as brothers and sisters in a new family, which we call the Church. 

It is thanks to the preaching of the Gospel begun by the Apostles at Pentecost, and continued by their successors at Nicaea, that we are here today. It is how billions of people have come to know, love, and serve Our Lord Jesus Christ. As people who are in Christ, who have entered the Church through our Baptism, we are given a very important job to do. We need to tell people about Jesus!

The world-wide Christian Church is wonderful in its diversity. We are all different, we do not speak the same language, or have the same culture. However, we are all equally empowered through having received the Holy Spirit at our Baptism, in our Confirmation, and through all the sacramental actions of the church, which are the outward and visible signs of the inward and spiritual grace of God. This is how the Holy Spirit works. This is how God builds us up together in love. Through the Eucharist, through prayer and through Scripture, we are nourished spiritually to keep doing all that God desires of us.

So, my brothers and sisters in Christ, let us pray earnestly for the gift of the Spirit. Just as St Nicholas was inspired by the Spirit, may God also fill us with His love and equip us to proclaim the Good News of the Kingdom. May the fire of the Holy Spirit embolden us to encourage others to come to know, and love Duw Dad, Duw y Mab, a Duw yr Ysbryd Glân. God the Father, God the Son, and God the Holy Spirit. I’r hwn y priodoler pob gogoniant, arglwyddiaeth, a gallu, yn awr, ac yn oes oesoedd. To whom be ascribed all glory, dominion and power, now and forever. Amen.