Prayer
Prayer in the Old Testament is in contrast with prayer in the New Testament in two respects:
(1) In the former the basis of prayer is a covenant of God, or an appeal to his revealed character as merciful, gracious, etc. In the latter the basis is relationship: "When ye pray, say, Our Father" (Matthew 6:9).
(2) A comparison, for example of the prayers of Moses and Paul, will show that one was praying for an earthly people whose dangers and blessings were earthly; the other for a heavenly people whose dangers and blessings were spiritual.