Luke, Gospel according to - was written by Luke. He does not claim to have been an eye-witness of our Lord's ministry, but to have gone to the best sources of information within his reach, and to have written an orderly narrative of the facts (Luke 1:1-4). The authors of the first three Gospels, the synoptics, wrote independently of each other. Each wrote his independent narrative under the guidance of the Holy Spirit.
What man of you, having an hundred sheep, if he lose one of them, doth not leave the ninety and nine in the wilderness, and go after that which is lost, until he find it?
I say unto you, that likewise joy shall be in heaven over one sinner that repenteth, more than over ninety and nine just persons, which need no repentance.
Either what woman having ten pieces of silver, if she lose one piece, doth not light a candle, and sweep the house, and seek diligently till she find it?
And not many days after the younger son gathered all together, and took his journey into a far country, and there wasted his substance with riotous living.
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.
And he answering said to his father, Lo, these many years do I serve thee, neither transgressed I at any time thy commandment: and yet thou never gavest me a kid, that I might make merry with my friends: