Aaron Niequist is a liturgist and writer, in New York City. After leading worship at Mars Hill Church (Grand Rapids, MI) and Willow Creek Church (Barrington, IL), Aaron created A New Liturgy - a collection of modern liturgical worship recordings. Shortly after, he started a discipleship-focused, formational, ecumenical, practice-based community at Willow Creek called The Practice. In 2018, Aaron wrote a book about a practice-based faith called The Eternal Current: How a Practice-Based Faith Can Save Us from Drowning.