This research brief compares the SALT Index with Lifeway, Barna, and American Bible Society studies, showing how outcomes-based, population-level metrics better measure spiritual formation, discipleship, and real-life transformation.

This article uncovers how modern measures of ministry success may be shaping activity without producing transformation.

New Scripture Absorption research reveals that believers who engage God’s Word four or more days a week and disciple others experience the highest spiritual vitality, resilience, and multiplying impact—closing the discipleship gap through the “Absorb One More” model.

A two-decade research journey reveals how consistent Bible engagement—especially the “Power of 4”—drives spiritual growth, life transformation, and discipleship, leading to today’s focus on Scripture absorption and measurable spiritual fitness.

Across the global Church, we report unprecedented access to Christianity—Scripture availability, digital reach, training resources, and evangelistic activity. Yet few efforts measure whether these inputs are producing durable spiritual formation, obedience, and reproducible discipleship at the population level.

The SALT Index (Scripture Absorption and Life Transformation) is a research framework designed to answer a question the global Church increasingly recognizes as essential:

This article uncovers how modern measures of ministry success may be shaping activity without producing transformation.

Is the Church in America experiencing revival or decline? This Sunday Review explores why conflicting data, misplaced metrics, and shallow measurements may be leading us to the wrong conclusions.

Is Christianity in America in revival or decline? This Sunday Review weighs conflicting evidence from ministries and major research and invites readers to act like a jury and deliver an honest verdict.