Perhaps most of my readers, if not all, know the story of a prodigal son though the word prodigal son was never mentioned in the Bible. To cut the story short, this is the ending of the story;
Lk 15:17 And when he came to himself, he said, How many hired servants of my father have bread enough and to spare, and I am perishing with hunger!
Lk 15:18 I will arise and go to my father, and will say to him, Father, I have sinned against heaven, and before thee,
Lk 15:19 And am no more worthy to be called thy son: make me as one of thy hired servants.
Lk 15:20 And he arose, and came to his father. But when he was yet a great way off, his father saw him, and had compassion, and ran, and fell on his neck, and kissed him.
The best part of the story is the joy that the repenting (not prodigal) son brings to heaven and to the angels of God.
Lk 15:7 I say to you, that likewise joy shall be in heaven over one sinner that repenteth, more than over ninety and nine just persons, who need no repentance.
Lk 15:10 Likewise, I say to you, There is joy in the presence of the angels of God over one sinner that repenteth.
Note that it is the son returning, meaning he is already a son after he became a sinner. Completely different from one who is not yet a son and must yet to believe on Jesus to become a son.
Jn 1:12 But as many as received him, to them he gave power to become the sons of God, even to them that believe on his name:
Note also that the sins committed by the son is a sin not unto death. A sin committed only by the lust of the flesh for every man is tempted, when he is drawn away by his own lust, and enticed.
Heb 10:26 For if we sin willfully after we have received the knowledge of the truth, there remaineth no more sacrifice for sins,
Heb 10:27 But a certain fearful apprehension of judgment and fiery indignation, which shall devour the adversaries.