then what is this is its not dead faith
Mt 15:9 But in vain they do worship me, teaching for doctrines the commandments of men.
Yes, glad you brought up that Scripture. Jesus was simply rebuking the Pharisees, who were adding onto God's word. They were legalistic, and Christ had the most to say for those people.
Jesus taught that having a right heart is what matters. Not how you wash your hands before you eat. Jesus rebuked the legalistic Pharisees many times. They took grace away from God and made it hard for man to be saved.
Also, we see in Scripture than many of the Jewish leaders (and Jews for that matter) had unbelief. Read the book of John.
Unbelief of the Jewish Leaders
"Finally the temple guards went back to the chief priests and Pharisees, who asked them, Why didnt you bring him in?
No one ever spoke the way this man does, the guards declared.
You mean he has deceived you also? the Pharisees retorted. Has any of the rulers or of the Pharisees believed in him? No! But this mob that knows nothing of the lawthere is a curse on them.
Nicodemus, who had gone to Jesus earlier and who was one of their own number, asked, Does our law condemn anyone without first hearing him to find out what he is doing?
They replied, Are you from Galilee, too? Look into it, and you will find that a prophet does not come out of Galilee." (John 7:45-52)
I can provide more scripture that shows the Pharisees did not believe Jesus was God, if you want me to.
Jesus says only those who do the will of God are saved. The will of God is this ...
"For my Fathers will is that everyone who looks to the Son and believes in him shall have eternal life, and I will raise him up at the last day. (John 6:40)
Once we have faith we become new creations. We now have the Spirit in us...
"Therefore, if anyone is in Christ, he is a new creation; the old has gone, the new has come!" (2 Corinthians 5:17)
We are told by faith ZGod gives his Spirit to us.
I will give you a new heart and put a new spirit in you; I will remove from you your heart of stone and give you a heart of flesh. (Ezekiel 36:26)
Then Peter said to them, "Repent, and let everyone of you be baptized in the name of Jesus Christ for the remission of sins; and you shall receive the gift of the Holy Spirit. For the promise is to you and to your children, and to all who are afar off, as many as the Lord our God will call." (Acts 2:38)
"Now He who establishes us with you in Christ and has anointed us is God, who also has sealed us and given us the Spirit in our hearts as a deposit." (2 Corinthians 1:21)
Thank God for everything and love him, yourself, and your neighbors as he loved us. I shouldn't have to post Scripture to back up that sentence.
I just ask God this...
"God, have mercy on me, a sinner." (Luke 18:13)