Trinity Sunday is the one Sunday in the church year when we do something a little different. Instead of talking about Old Testament stories or Jesus’ teachings or healings, we talk about the Trinity-God the Father, God the Son, and God the Holy Spirit. The Trinity is not specifically mentioned in the Bible, but it is there. Trinity is not an easy concept to understand or explain. In fact, many preachers decide to take Trinity Sunday off!  

In order to understand the Trinty, we have to understand both the Old Testament and the New Testament. The time of the Old Testament was the time of God the Father, and that is referred to indirectly in Isaiah 6:1-8. The New Testament era was the time of God the Son in the form of Jesus Christ, followed by the time of God the Holy Spirit, who dwells in the hearts and minds of all believers.