Jesus says that
"there is none good but one, that is, God " and God alone.
Mar 10:18
And Jesus said unto him, Why callest thou me good? there is none good but one, that is, God.
So what was Jesus purposely telling us about Himself in this proclamation ?
Consecrated Life, as always, look at the context of all individual verses for their real meaning instead of picking them out and giving them your own meaning:
Mar 10:17 And as he was setting out on his journey, a man ran up and knelt before him and asked him, “Good Teacher, what must I do to inherit eternal life?”
Mar 10:18 And Jesus said to him, “Why do you call me good? No one is good except God alone.
Mar 10:19 You know the commandments: ‘Do not murder, Do not commit adultery, Do not steal, Do not bear false witness, Do not defraud, Honor your father and mother.’”
Mar 10:20 And he said to him, “Teacher, all these I have kept from my youth.”
Mar 10:21 And Jesus, looking at him, loved him, and said to him, “You lack one thing: go, sell all that you have and give to the poor, and you will have treasure in heaven; and come, follow me.”
Mar 10:22 Disheartened by the saying, he went away sorrowful, for he had great possessions.
Mar 10:23 And Jesus looked around and said to his disciples, “How difficult it will be for those who have wealth to enter the kingdom of God!”
(1) The young man was treating him as an exalted rabbi on par with God. Jesus put his idolatry down. He is saying nothing about his own deity.
(2) Jesus left out the command in his list "You shall not covet," which was the man's problem. Jesus also called him to follow Jesus, an action that would have sent the young man to the cross with him.
(3) Instead, for Jesus' many claims to deity (also in the context of the gospels), look at the many "I am" claims of Jesus in the Gospel of John that identify him with the God of the burning bush (Exodus 3:13-15):
Exo 3:13 Then Moses said to God, “If I come to the people of Israel and say to them, ‘The God of your fathers has sent me to you,’ and they ask me, ‘What is his name?’ what shall I say to them?”
Exo 3:14 God said to Moses, “I AM WHO I AM.” And he said, “Say this to the people of Israel: ‘I AM has sent me to you.’”
Exo 3:15 God also said to Moses, “Say this to the people of Israel: ‘The LORD, the God of your fathers, the God of Abraham, the God of Isaac, and the God of Jacob, has sent me to you.’ This is my name forever, and thus I am to be remembered throughout all generations.
This truth is most clearly seen when Jesus claims to the good Shepherd in John 10:11.
Joh 10:11 I am the good shepherd. The good shepherd lays down his life for the sheep.
This amazing claim not only identifies Jesus completely with the God who appeared to Moses in the burning bush but also to David's divine Shepherd in Psalm 23:1.
Psa 23:1 A Psalm of David. The LORD is my shepherd; I shall not want. (All quotes are from the ESV.)