The doctrine of the Trinity, simply put, is that God is absolutely and eternally one essence subsisting three distinct and ordered persons without division and without replication of the essence.
God the Father by John MacArthur and Richard Mayhue taken from Biblical Doctrine by John MacArthur and Richard Mayhue, copyright 2017, Crossway Books, a division of Good News Publishers, Wheaton Illinois 60187, www.crosswaybooks.org. Page 189.
