Yes, Ellen White does connect tithing with a test of faith. In her writings, she describes the tithing system as a "living test" that develops character and reveals the true state of the heart: - "to them a weekly, monthly, living test. This tithing system, I saw, would develop character, and manifest the true state of the heart..." (GW92 268.4) She also emphasizes that God tests and proves all, and that faithfulness in tithes and offerings is part of this test: - "God will bear long with some, He will test and prove all; but His curse will surely follow the selfish, world-loving professor of truth. God knows the heart; every thought and every purpose is open to His eye." (5T 267) Additionally, she states: - "God tries the faith of His people to test their character. Those who in times of emergency are willing to make sacrifices for Him are the ones whom He will honor with a partnership in His work. Those who are unwilling to practice self-denial in order to carry out God's purposes will be tested..." (6T 104.3) In summary, Ellen White does teach that tithing is a test of faith and character, and that God uses it to reveal the true condition of the heart. References: - White, E. G. (1892). Gospel Workers (GW92), p. 268.4. - White, E. G. (1882). Testimonies for the Church, Vol. 5 (5T), p. 267. - White, E. G. (1901). Testimonies for the Church, Vol. 6 (6T), p. 104.3.