22. Is He not good, at Whose command the seas became firm ground for the feet of them that fled, and the rocks gave forth water for the thirsty? Ex. xvii. 6: Num. xx. 8, 11. so that the handiwork of the true Creator might be known, when the fluid became solid, and the rock streamed with water? That we might acknowledge this as the handiwork of Christ, the Apostle said: “And that rock was Christ.” 1 Cor. x. 4.