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Luke 15:18

Luke 15:18
I will arise and go to my father, and will say unto him, Father, I have sinned against heaven, and before thee,

My Notes

What Does Luke 15:18 Mean?

Luke 15:18 is the prodigal's planned speech — the script he rehearses in the pigpen before he stands up and walks home. "I will arise and go to my father" — anastas poreusomai pros ton patera mou. Anastas — I will arise, I will stand up. The decision to stand is the decision to return. The movement begins with the body: get up. Poreusomai — I will go, I will journey, I will travel. Pros ton patera mou — to my father. Not to the family. Not to the house. Not to the servants. To my father. The destination is personal.

"And will say unto him, Father, I have sinned against heaven, and before thee" — kai erō autō pater hēmarton eis ton ouranon kai enōpion sou. The confession has two directions. Eis ton ouranon — against heaven. The sin wasn't just horizontal. It was vertical. The prodigal sinned against God — against the divine order, against the heavenly reality that governs all things. Enōpion sou — before you, in your sight, against your face. The sin was also personal — directed at the father who gave the inheritance and watched his son walk away with it.

The phrase "I have sinned" — hēmarton — is aorist: a completed action, a summary verdict on everything that's happened since he left. Not "I made some mistakes." Not "things didn't work out." I sinned. The verb hamartanō means to miss the mark, to deviate from the target, to fail the standard. The confession is total: I missed. Against heaven. Against you.

Verse 19 continues: "I am no more worthy to be called thy son: make me as one of thy hired servants." The prodigal prepares to negotiate — to offer a deal. He'll work for his place. He'll earn his way back as a servant since he disqualified himself as a son. But the father won't let him finish the speech (v. 22). The ring, the robe, and the feast interrupt the negotiation — because the father isn't interested in a deal. He wants his son back.

Reflection Questions

  • 1.What do you need to 'arise' from — what posture of despair or far-country identity do you need to stand up out of?
  • 2.Can you say 'I have sinned' without qualification — naming it, not softening it?
  • 3.How does the prodigal's two-directional confession (against heaven and before the father) model complete repentance?
  • 4.Have you been preparing a negotiation speech (make me a servant) when the Father is already planning a feast?

Devotional

I will arise. I will go. I will say: Father, I have sinned.

Three decisions. Each one harder than the last. The first: arise — stand up out of the pigpen, out of the far country, out of the posture of despair. The decision to stand is the first act of repentance. You can't go home lying down. The second: go — travel, move, put distance between yourself and the place that destroyed you. The going will be long. The road home is the same road you took away — and walking it backward is harder than walking it forward. The third: say — open your mouth and confess. Not explain. Not negotiate. Confess. Father, I have sinned.

The confession runs in two directions: against heaven and before thee. The prodigal understands that his sin wasn't just against his father. It was against the divine order — against heaven itself. When you rebel against a father who loves you, you're rebelling against the architecture of the universe. The vertical and horizontal dimensions of sin are inseparable: what you did to your father, you did to heaven. What you did to heaven showed up in what you did to your father.

"I have sinned." Not: I made bad choices. Not: circumstances were difficult. Not: I was young and didn't know better. Hēmarton — I sinned. The prodigal doesn't cushion the confession with qualifications. He names it for what it is. And naming it — calling the thing by its real name — is what makes the return possible. You can't repent of a "bad decision." You can repent of a sin.

The speech the prodigal rehearsed included a demotion request: make me a servant. The father never heard it. Before the prodigal could negotiate his way down to hired-hand status, the father interrupted with a ring, a robe, and a feast. The son who came home expecting the worst received the best — because the father was never interested in the deal. He was interested in the son.

Commentary

Trusted original commentary from respected historical Bible scholars and theologians.

Gill's ExpositionBaptist theologian, 1697–1771

I will arise,.... This is the resolution which at last, through divine grace, he came into: he determines to quit the…

Barnes' NotesPresbyterian pastor, 1798–1870

I will arise - This is a common expression among the Hebrews to denote “entering on a piece of business.” It does not…

Adam ClarkeMethodist theologian, 1762–1832

Against heaven - Εις τον ουρανον; that is, against God. The Jews often make use of this periphrasis in order to avoid…

Matthew HenryNonconformist minister, 1662–1714Luke 15:11-32

We have here the parable of the prodigal son, the scope of which is the same with those before, to show how pleasing to…

Cambridge BibleAcademic commentary, 1882–1921

I will arise and go to my father The youth in the parable had loved his father, and would not doubt about his father's…