Who are we trusting with guiding us in our Faith, and what doctrine do they preach?

Who are we trusting with guiding us in our Faith, and what doctrine do they preach?
 
Luke 16:13-18 (NKJV) No servant can serve two masters; for either he will hate the one and love the other, or else he will be loyal to the one and despise the other. You cannot serve God and mammon.”
 
Now the Pharisees, who were lovers of money, also heard all these things, and they derided Him. And He said to them, “You are those who justify yourselves before men, but God knows your hearts. For what is highly esteemed among men is an abomination in the sight of God.
 
The law and the prophets were until John. Since that time the kingdom of God has been preached, and everyone is pressing into it. And it is easier for heaven and earth to pass away than for one tittle of the law to fail.
 
Whoever divorces his wife and marries another commits adultery; and whoever marries her who is divorced from her husband commits adultery.
 
Isaiah 29:11-14 (NKJV) The whole vision has become to you like the words of a book that is sealed, which men deliver to one who is literate, saying, “Read this, please.” And he says, “I cannot, for it is sealed.” Then the book is delivered to one who is illiterate, saying, “Read this, please.” And he says, “I am not literate.”
 
Therefore the LORD said: “Inasmuch as these people draw near with their mouths And honor Me with their lips, But have removed their hearts far from Me, And their fear toward Me is taught by the commandment of men,
 
Therefore, behold, I will again do a marvelous work Among this people, A marvelous work and a wonder; For the wisdom of their wise men shall perish, And the understanding of their prudent men shall be hidden.”
 
Matthew 15:4-9 (NKJV) For God commanded, saying, ‘Honor your father and your mother’; and, ‘He who curses father or mother, let him be put to death.’ But you say, ‘Whoever says to his father or mother, “Whatever profit you might have received from me is a gift to God”– then he need not honor his father or mother.’ Thus you have made the commandment of God of no effect by your tradition. Hypocrites! Well did Isaiah prophesy about you, saying:
 
‘These people draw near to Me with their mouth, And honor Me with their lips, But their heart is far from Me.
And in vain they worship Me, Teaching as doctrines the commandments of men.’ “
 
Colossians 2:20-23 (NKJV) Therefore, if you died with Christ from the basic principles of the world, why, as though living in the world, do you subject yourselves to regulations– 21 “Do not touch, do not taste, do not handle,”
which all concern things which perish with the using–according to the commandments and doctrines of men?
 
These things indeed have an appearance of wisdom in self-imposed religion, false humility, and neglect of the body, but are of no value against the indulgence of the flesh.
 
Titus 1:13-15New King James Version (NKJV) This testimony is true. Therefore rebuke them sharply, that they may be sound in the faith, 14 not giving heed to Jewish fables and commandments of men who turn from the truth.
To the pure all things are pure, but to those who are defiled and unbelieving nothing is pure; but even their mind and conscience are defiled.
 
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