From chapters 16, 17, and 18
Not a probability, an impossibility
Serving two masters is not a thing that anyone does. A person is either lost or saved, a child of God or mere human.
No servant can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon. And the Pharisees also, who were covetous, heard all these things: and they derided him.Luke 16:13-14
And he said unto them, Ye are they which justify yourselves before men; but God knoweth your hearts: for that which is highly esteemed among men is abomination in the sight of God.Luke 16:15
The means of justifying oneself is out in the open. The options are binary. Yeshua’s contemporaries were either following Moses, with John the Baptist showing the straight path to the Anointed.
There are no people going to heaven or hell, and most certainly Yeshua is the only person to have come from glory and goes to glory from humiliation. This is not a teaching about communication with the dead or the devices of the dead.
The certainty of offences
Then said he unto the disciples, It is impossible but that offences will come: but woe unto him, through whom they come!
Ready to forgive
Take heed to yourselves: If thy brother trespass against thee, rebuke him; and if he repent, forgive him. And if he trespass against thee seven times in a day, and seven times in a day turn again to thee, saying, I repent; thou shalt forgive him.
Not a lot of faith
And the Lord said, If ye had faith as a grain of mustard seed, ye might say unto this sycamine tree, Be thou plucked up by the root, and be thou planted in the sea; and it should obey you.
NO SOUL JUSTIFIED BY DUTY = NOBODY SAVED BY WORKS
But which of you, having a servant plowing or feeding cattle, will say unto him by and by, when he is come from the field, Go and sit down to meat? And will not rather say unto him, Make ready wherewith I may sup, and gird thyself, and serve me, till I have eaten and drunken; and afterward thou shalt eat and drink? Doth he thank that servant because he did the things that were commanded him? I trow not. So likewise ye, when ye shall have done all those things which are commanded you, say, We are unprofitable servants: we have done that which was our duty to do.Luke 17:6-10
This practical obedience understood. Doing what is expected, keeping covenant, performing acts of loyalty and observing seasons does not get God’s smile of approval. Duty is not faith. Faith is the work of believing in the Son of God. Getting to that point is God’s gift: repentance to the elect (those that are ready to switch from the temporary to the permanent, from old to new).
How to get life
A Jew should not be asking this question. His right standing was never a matter of a single duty, but rather a host of duties.
And a certain ruler asked him, saying, Good Master, what shall I do to inherit eternal life?
In simple terms, this list of FIVE commands is not the gospel.
Thou knowest the commandments, Do not commit adultery, Do not kill, Do not steal, Do not bear false witness, Honour thy father and thy mother. Luke 18:20