To be propitious is to be favorably disposed or gracious. In a biblical context, it describes the disposition of God toward sinners that has been made possible by the atoning work of Christ. Sin makes humanity objects of God's just wrath (Ephesians 2:3); God is, by nature, opposed to evil. The sacrifice of Christ satisfies the demands of God's justice — this is called propitiation. The result of propitiation is that God is now propitious toward those who are in Christ: He is free to act upon His love and mercy without compromising His holiness. His disposition is no longer one of condemnation but of grace. A propitious God is one whose favor is now extended to His people. This is not because God's nature has changed, but because the legal barrier of sin has been removed by Christ. God does not become loving at the cross; His eternal love provides the cross so He can justly extend His favor. Thus, the mercy seat in the Old Testament temple was the place where God's wrath was propitiated by sacrifice, allowing Him to dwell propitiously among His people.
PROPITIOUS — (Webster 1828) Favorable; kind; disposed to be gracious or merciful; ready to forgive sins and bestow blessings. "And he will be propitious to his land and to his people." — Deut. 32. It is particularly applied to God. It denotes a disposition in God to be gracious and merciful to sinners, when they are penitent. Favorable; as a propitious season; a propitious gale.
Modern theology, particularly in its liberal and progressive forms, often rejects the entire conceptual framework of wrath and propitiation. It presents a God who is universally propitious by nature, without any need for a substitutionary atonement. In this view, God is like a benevolent grandfather who was never angry in the first place, so the idea that He needs to be "made propitious" is offensive. This reduces the cross from a cosmic transaction that satisfies divine justice to a mere demonstration of God's love. The biblical picture is more complex and more glorious: God's love and His justice are not in conflict. His love provides the very sacrifice that His justice demands, thereby making Him propitious toward those who justly deserved His wrath. To speak of a propitious God without a preceding propitiation is to cheapen grace and remove the offense — and the power — of the cross.
• 1 John 4:10 — "In this is love, not that we have loved God but that he loved us and sent his Son to be the propitiation for our sins."
• Romans 3:25 — "God put forward as a propitiation by his blood, to be received by faith."
• Hebrews 2:17 — "He had to be made like his brothers in every respect, so that he might become a merciful and faithful high priest...to make propitiation for the sins of the people."
• Ephesians 2:3–4 — "...we were by nature children of wrath, like the rest of mankind. But God, being rich in mercy..."
G2436 — hilasmos (ἱλασμός) — propitiation, atoning sacrifice; the act that makes God propitious.
G2435 — hilastērion (ἱλαστήριον) — the place of propitiation; the mercy seat on the Ark of the Covenant.
• We do not pray to make God propitious; we pray because, in Christ, He already is.
• The pagan offers a sacrifice to make an angry god propitious; the Christian offers thanks for the sacrifice God Himself provided to make Himself propitious.
• A propitious wind may fill the sails of a ship, but God's propitious grace fills the soul of a believer, moving them toward the safe harbor of glory.