Faith & Code | Reflections by Errong

🧠 The Invisible System Behind Enterprise Browser Extensions (and Why Most Teams Get It Wrong) Most people think browser extensions are simple: “Build it → publish it → users get it.” In enterprise reality, it’s nothing like that. The moment you need: silent installation controlled rollout auto updates without IT tickets device targeting (not user guessing) …you accidentally end up building a distribution system disguised as an extension pipeline . ⚙️ The Architecture Nobody Sees At the center of everything is a simple idea: A browser extension is not “installed.” It is “subscribed to an update stream.” That stream is controlled by update.xml , and everything else is just delivery mechanics. 🏗️ High-Level Architecture Everything depends on one fragile but powerful contract: The update.xml URL must never change. Only its version and CRX pointer change. 📦 The Build Pipeline (Simple but Critical) We use a modern Web Extension b...

From Cain and Abel to Christ: A Reflection on Anger, Sin, and Redemption The story of Cain and Abel in Genesis 4 is not merely an ancient tragedy. It is a mirror held up to the human heart. It reveals how anger, envy, and rejection of God’s voice can grow into destruction, both inwardly and outwardly. In this reflection on the sixth commandment, “You shall not murder,” we see that the command is not only about external actions. It reaches deeper into the heart, exposing the roots of hatred, jealousy, and broken relationships. 1. Two Offerings, Two Hearts Cain and Abel both came before God with offerings. Outwardly, their actions appear similar, yet Scripture reveals a profound difference: Abel offered his sacrifice in faith. Cain offered without genuine trust and love for God. Hebrews 11:4 tells us that Abel’s offering was accepted because it was given by faith. Worship, therefore, is not measured by appeara...

Why Christianity? Because Jesus Christ Still Changes Lives One of the most common questions Christians encounter is simple yet profound: "Why should I be a Christian?" In a world filled with competing religions, philosophies, and self-help systems, why does Christianity matter? The sermon based on Luke 8:26-39 provides a compelling answer: Christianity matters because Jesus Christ transforms lives. The gospel is not merely a set of beliefs or moral principles. It is the good news that the Son of God entered a broken world to rescue broken people. The Man Nobody Could Help Luke tells the story of a man possessed by a legion of demons. This was not a man with a minor problem. He was completely dominated by forces beyond his control. Once he had likely been an ordinary citizen with family, friends, and responsibilities. Now he lived among tombs, isolated from society, stripped of dignity, and unable to control himself. His neighbors tried to restrain him with chains,...

2026 May Reflection Summary — A Month Full of the Holy Spirit Yes — May really has been full of the Holy Spirit. Looking back over the past few weeks, it is hard not to see a clear spiritual rhythm running through everything: baptism, Holy Communion, Ascension Day, Pentecost, and the installation of elders. Even in our family life, with our youngest child’s baptism, God’s grace has been visibly present. It truly feels like a month where heaven has been close, and the church has been reminded again and again that Christ is alive, reigning, and building His people through His Spirit. A Journey Through May: Living Between Heaven and Earth The month began with the ongoing meditation on the Lord’s Prayer and the call to daily dependence on God. The sermons reminded us that discipleship is not built on self-sufficiency but on receiving daily bread from the Father. From there, the focus turned to Christ’s reign — the bless...

Pentecost and the Care of God’s Church The installation of office-bearers on Pentecost is not merely a matter of tradition or convenience—it is deeply fitting. Pentecost reminds the church that all Christian ministry, especially spiritual leadership, is impossible without the empowering presence of the Holy Spirit. What began in fear in the upper room became bold proclamation after the Spirit was poured out. In the same way, church leadership is never sustained by personality, talent, or natural ability. It is sustained by the Spirit of God. As Acts 20:28 declares, “The Holy Spirit has made you overseers.” This is both a comfort and a responsibility: those who are called are also those who will be equipped. Paul’s Farewell and the Weight of Ministry Acts 20 records a deeply emotional moment. The Apostle Paul meets the elders of Ephesus at Miletus for the last time. He knows his journey is leading to suffering, imprisonmen...

Living Between Pentecost and Christ’s Return There are certain moments in redemptive history that stand above all others. Christmas announces the birth of Christ. Good Friday proclaims His sacrifice. Easter celebrates His resurrection. Ascension Day declares His reign in heaven. Pentecost reveals the coming of the Holy Spirit. Yet the church still waits for one final great day — the return of Jesus Christ in glory. The sermon reminds us that we are living “between number five and number six.” We live between Pentecost and the Second Coming. The Holy Spirit has already come, yet Christ has not yet returned. This places the church in a unique season of history: a season of witness, grace, urgency, and hope. The Meaning of Pentecost Pentecost was not an accidental event. It was the fulfillment of Christ’s promise. Before ascending into heaven, Jesus told His disciples that the Father would send “another Helper” who would remain with them forever. Ten days after Christ a...

Daily Bread and Daily Dependence “Give us this day our daily bread.” — Matthew 6:11 The sermon explored a significant transition within the Lord’s Prayer. The first three petitions focus entirely on God and His glory: Hallowed be Your name Your kingdom come Your will be done on earth as it is in heaven Then the prayer shifts toward our needs: Give us this day our daily bread Forgive us our debts Lead us not into temptation This structure is deeply comforting because it teaches us that God’s glory and our good are not enemies. They belong together. We ask God for what we need so that our lives may continue to serve Him, glorify Him, and reflect His goodness in the world. God Cares for Body and Soul One of the strongest themes of the sermon was that God cares not only for our souls but also for our bodies. The Heidelberg Catechism reminds believers that we belong to Jesus Christ “body and soul.” Christ did not redeem only an invisible spiritual part o...