Grace Evangelical Lutheran Church

2 Corinthians 13:11–14 God in Three Persons, Blessed Trinity

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In the first half of the Church Year (Advent through Pentecost), we look at the life of Christ—his birth, ministry, death, resurrection, ascension, and the sending of the Holy Spirit. In the second half of the year, we look at the teachings of Christ. We begin by looking at one of the most mind-blowing truths: that God is triune. Already in the very first chapter of the Bible, we read, “Then God said, “Let us make mankind in our image…” (Genesis 1:26). Note the singular “God” and the plural “us.” Scripture teaches us that there is only one God but that he exists as three persons—Father, Son, and Holy Spirit. He is triune (three-in-one). This teaching is not some logical exercise or philosophical excursion. The doctrine of the Trinity is central to our salvation. The triune God is our Creator, Redeemer, and Sanctifier. Lose this doctrine, and as the Athanasian Creed says, you lose it all. A Jesus who is less than God is also less than a Savior. So often, when life gets hard, we get frustrated. We don’t understand how God is always working for our good. But the doctrine of the Trinity teaches us we cannot even comprehend God’s existence. How, then, could we ever comprehend all his workings? On this Holy Trinity Sunday, let it be enough to know that all three persons—Father, Son, and Spirit—love us with everlasting love.

Acts 2:1–21 He Lives to Pour Out His Spirit

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Fifty days after the Passover, God’s Old Testament people celebrated Pentecost (Greek for “fifty”). Pentecost commemorated the gathering of the harvest and was also used to remember the giving of the Law on Mt. Sinai, the start of the Church of Israel. Christ chose Pentecost to be the birthday of his New Testament Church too. By pouring out his Holy Spirit, Christ empowered the Church to gather in the great harvest of souls won by the Son. Pentecost is the third great festival of the Church, along with the Nativity and the Resurrection. The early church fathers mention the Festival of Pentecost often enough to lead many to believe it was celebrated annually already at the time of the apostles. Pentecost closes the fifty-day period after Easter and ends the festival half of the church year. The Church dresses in red this day to remind us of the tongues of fire that marked the Spirit’s gift, as well as the blood of the martyrs, which was the seed of the Church.