The reading from the Book of Sirach is making the wise and useful observation that God will deal with us in a manner similar to the way we deal with other people. So love and forgive others and God will love and forgive you. But if you… (you know what follows)

God speaks harsh words to Ezekiel the prophet. For Ezekiel knows the harsh things he should be saying to his fellow Jews, and that this will be for their own good in the long term. But who likes to tell others off? So God actually threatens him with punishment if he does not speak out when he knows that he should.

It's not so long ago that we were reading of Elijah wanting to die because of his failure to inspire the people and because of a death-threat against him. Jeremiah was in a worse situation in Judah around the 7th century BC. In that land, regard for Yahweh and the Covenant was almost entirely abandoned, and God urged Jeremiah to preach about the inevitable political demise and eventual national disaster. He had a respite from his work for a short time during the reign of Josiah; for this king tried to reintroduce the recognition of the Law of God as found written in what we now see as the early books of the bible, especially Exodus, Leviticus and Deuteronomy. But this reform soon failed, and idolatry and fertility cults regained popularity. Despite extreme reluctance, Jeremiah began the work of his calling, which was to bring him general disfavour, occasional imprisonment or confinement and continued unpopularity. There was some upbeat aspects to his message at times, particularly the one about God wanting to set up a new covenant within the hearts of the people. He suffered a tormenting turmoil in his own life; it resulted both from his natural abhorrence of preaching against his own people and from the deep and inescapable inner compulsion to undertake the vocation given him by God – announcing the people's downfall. Doing God’s will is not always an obviously good thing! Our reading is his outcry at this personal conflict within him.

During the time of the prophet Isaiah, the kingdom of Judah was threatened by the Assyrian empire from the east. Isaiah had recommended trusting in God to save the people and God would be with them. But the king and leaders didn’t see it this way, they felt they would loose, and forfeit their privileged positions, if not their lives. They made some sort of a pact with the emperor of Assyria so that Jerusalem was spared, although the rest of the country was invaded. So Isaiah, as we read today , reprimand Shebna the royal steward, and announced a replacement, who will be the leader to make decisions in the future; he will have the symbols of office, the sash, the robe, the key to the ordering of the country’s affairs, and will keep them safe like the peg for a tent. This passage seems to be in the mind of Matthew when he writes of Peter receiving the leadership office in our gospel reading. But the historical events behind it challenge us severely in our relationship with our world and with God, just as the sermon on the mount in the New Testament does: if anyone wants your shirt give them your coat as well, if anyone strikes you turn the other cheek, love you enemies… (see Matthew 5:38-48).

There was much apocalyptic literature in the centuries before and after Christ – among the Greek, Roman, Egyptian, Persian and even Indian literature. This literature which is about the development in the world of disasters and troubles expressed in dramatic stories, included those of evil ‘influences’ seeking to destroy the next ruler born to a chosen woman to be mother of the future ruler. Some form of these apocalyptic stories were part of Jewish literature – as also the book of Revelation in the N.T. which used to be called the Apocalypse in Catholic bibles, because of its similarity to such literature. Our first reading (from Revelations 12:1-6 ) for the Catholic feast of the Assumption includes an adaptation of this mythic scenario to the situation of Christianity under Roman persecution in the 1st century to encourage believers in Jesus and his resurrection – a faith that secures them safety in heaven, but how the rest of us, still living in our world, are still threatened by evil. The story could bring to mind the Assumption of Mary into heaven – waiting with Christ for the rest of us after our struggles against the evil forces in our world. There are ‘secular’ stories of old about such sort of events.

In the Acts 12:1-11 Luke is writing the remarkable account of the expansion of Christianity and the development of the church; and this is despite external opposition, even persecution, and their leaders’ inadequacies and failings. The story is built around the two different characters in the early church of Peter and Paul. Whereas Peter was a headstrong, simple Galilean Jewish fisherman who followed Jesus throughout His public ministry, Paul was a well educated Jew and Roman citizen living outside of the Jewish territory, who after a special encounter with Jesus turned from antagonism to Christians to become an apostle of Christianity to the Gentiles. The phrase “in those days” at the beginning of today’s reading, alludes to the time when the followers of Jesus in Jerusalem and the surrounding area expanded and even included followers of Jesus’ Way who were not Jews – they were Samaritans or even Gentiles. It was this expansion that began to cause disturbances in Jerusalem. Herod, the local ruler, wanted to keep the peace in order to retain favour within the Roman empire, and so began to arrest the Jewish Christian leaders who were the source of the trouble. So our reading concerns the imprisonment of Peter; it was during the feast of unleavened Bread – a sacred time in Jerusalem – so he would be executed after the Passover, as James had been earlier. The story of his escape was passed down by word of mouth and that is what is related here by Luke. This is a good story illustrating how faith can lead us into difficulties and yet God can save us.

The first reading from the Book of Jeremiah displays a common pattern in the experiences of all humans when they are intending to do their best and what they think is right. In this 7 th century BC this prophet really feels the call from God to try to bring the people – all people – back into a good relationship with a loving God and to preach with severity and reproach against the poor behaviour of his people. It seems almost natural that they oppose him more and more as he upbraids them – and Jeremiah had a really tough time. But he earnestly wants to believe that God will see him alright in the end, will put his accuses to shame; he has faith yet it is shot through with human weakness for he hopes and expects that God will ‘get His own back’ on these miscreants … Jeremiah hopes for revenge! The best of us will still get things wrong about God and His ways.

The first five books of the Bible are called the Pentateuch, which comes from the Greek words for five and for scroll; together these books are called the Law, particularly in the Jewish religion. The last of these five books is called Deuteronomy, which comes from the Greek words for second and for law, because this book is like a summing up of the laws and experiences of the previous books of the Law. It is chiefly a story of the relationship between God and the people; he saves and looks after them time and again in wonderful ways, they repeatedly complain and let Him down – it’s the story of our lives too, perhaps. The verses we have today focus on the manna, which they received as a gift from God when they found themselves in the desert with no knowledge of how to survive there and hence made a complaint against God for leading them there through Moses. Manna was seen as miraculous food that was the gift of life for them from God even though they were not deserving. From this it is clear how this is related to the sacrament of Communion.

Exodus is the second book of the Bible; it is based on and around the story of slaves escaping from their oppression in Egypt and travelling through the hostile desert under the leadership of Moses; and it was in this process that a relationship was built up between them and the one God who would be theirs from then on forever; it was the God with the mysterious name of Yahweh, meaning something like ‘I am who is.’ This basic oral account over time gained a great number of elaborations and additions before it settled into the written form in the Bible that has now been more or less unaltered for about two and a half thousand years. In our extract for today’s first reading we hear of this aloof and even fearful God condescending to meet with Moses the people’s leader on the heights of the sacred Mount Sinai. This God then announces himself (always referred to in this personal way) as kind and forgiving, despite the unfaithfulness of the people whose God He is. Moses is encouraged by this revelation and feels enabled to respond on behalf of the people he leads, with worship and prayer for blessing and forgiveness. It is this threefold pattern in this section of the Exodus story that is seen by Christians to suit this day’s Feast of the Trinity – the threefold pattern of God the aloof, the one who shows Himself and the one who enables an appropriate response.