“The work of the pulpit is to explain to people that the triune God has no needs, least of all a need for the love of his creatures. God is love, and so the Trinity is love—love expressed, received, and delighted in among three persons. The preacher must tell his hearers that God doesn’t need any of us, though we assume he does. Instead, the gospel is love, offered to all who seek the embrace of the ever-loving and already-loving God.
The preacher must teach people of God so that they can worship him with all their might. He must preach God so that they learn to adore the God who loves lost people because he chooses to, with no compulsion whatsoever, except the compulsion of the overflowing love of the Trinity. To know this God in his love in Christ is eternal life. The preacher’s task is to show them nothing less. Sunday by Sunday, our work must show our hearers that God is the one who lives, rules, loves, and speaks, all to his own glory.
We should never be so foolish as to wonder whether we should preach the gospel or instead teach the Trinity. The God of the gospel is the Trinity. The gospel message is a call to know God in his triune love, both now by faith and one day in eternity with sight and unbreakable joy. God has given the light of the knowledge of his triune glory in the face of Christ (2 Cor. 4:6). Preach the gospel, and you are preaching Trinity love..
He is glorious. This is the God the Scriptures declare to us (and sing of to us, warn us about, and command us to come to, and urge us to delight in). There can never be a greater hope for the world than to know this God. He is waiting for us.”
Allen, Lewis. The Preacher’s Catechism, 37, 38)