The visually beautiful window at the far front on the south side illustrates the Gospel for Trinity Sunday, the week after the festival of Pentecost. It tells the story in John 3:1-15 of a nighttime visit of the Jewish ruler, Nicodemus, with Jesus. Displayed in the window are an open hand from the clouds, a snake suspended on a cross, a dove, a baptismal font, and a burning candle.
Trinity Sunday brings to a close the first or festival half of the church year which celebrates the great events in the life of Jesus, his birth, death, resurrection, and ascension. Now at the close, these events are commemorated with a festival of gratitude to the God of salvation, Father, Son, and Holy Spirit. It tells of Nicodemus visiting Jesus at night from a desire to become acquainted with this new teacher whose miraculous signs proved that God was with him. Jesus then taught Nicodemus about the works of God and the way to come to God. A rebirth to faith (burning candle) was necessary, and this happened by water (baptismal font) and the Spirit (dove). The object of the new life of faith is the one whom the Father (open hand) sent into this world. As Moses lifted up the serpent in the desert to rescue people from the poisonous snake bites, so Jesus must be lifted up (snake on cross), so that everyone who believes in him may have eternal life. The Father is pictured with the open hand, the Son with the serpent on the cross, and the Holy Spirit with the dove. They are three persons, yet one God.