Faith unto salvation must come from the salvation giver. Lest any man should boast in any of his own doing, be it faith, works or what ever man thinks he can do to please God and procure his own salvation. I cannot die for myself. Only Christ can die for my salvation. It takes His Faith to bring me to His Cross.
Acts 3:16 And his name (Jesus Christ)through faith in his name (Jesus Christ) hath made this man strong, whom ye see and know: yea, the faith which is by him (Jesus Christ)hath given him this perfect soundness in the presence of you all.
Pretty plain.
All the other "faith of Christ", have no in or of. It simply says, "Faith Christ".
Expecially: Galatians 2:16 Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified.
"the faith" Strong's Greek Dictionary
4102. pistis
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pistiV pistis pis'-tis
from 3982; persuasion, i.e. credence; moral conviction (of religious truth, or the truthfulness of God or a religious teacher), especially reliance upon Christ for salvation; abstractly, constancy in such profession; by extension, the system of religious (Gospel) truth itself:--assurance, belief, believe, faith, fidelity.
Crucified with Him, raised in life by His life and Faith and all that God has made Him for our salvation for those that God has given to Him, that He loose none except the "son of perdition", to fulfill prophesied scripture.
Galatians 2:20 I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith (Son of God) of the Son of God, who loved me, and gave himself for me.
Again, "The Faith"; "the faith" Strong's Greek Dictionary
4102. pistis
Search for G4102 in KJVSL
pistiV pistis pis'-tis
from 3982; persuasion, i.e. credence; moral conviction (of religious truth, or the truthfulness of God or a religious teacher), especially reliance upon Christ for salvation; abstractly, constancy in such profession; by extension, the system of religious (Gospel) truth itself:--assurance, belief, believe, faith, fidelity.
He is our all and in all, "Christ in you the Hope of Glory", how can this not be that exacting faith that brings salvation and perfect peace, and all that God swore we would enter into His "REST".
1 Corinthians 1:30-31 But of him are ye in Christ Jesus, who of God is made unto us wisdom, and righteousness, and sanctification, and redemption: That, according as it is written, He that glorieth, let him glory in the Lord.
This "faith" is of Him, through Him, in Him, and all else we need for believing that Jesus Christ is the Son of God.
Strong's Greek Dictionary
1537. ek
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ek ek ek or ex ex
a primary preposition denoting origin (the point whence action or motion proceeds), from, out (of place, time, or cause; literal or figurative; direct or remote):--after, among, X are, at, betwixt(-yond), by (the means of), exceedingly, (+ abundantly above), for(- th), from (among, forth, up), + grudgingly, + heartily, X heavenly, X hereby, + very highly, in, ...ly, (because, by reason) of, off (from), on, out among (from, of), over, since, X thenceforth, through, X unto, X vehemently, with(-out). Often used in composition, with the same general import; often of completion.
That pretty much covers the Faith Son of God, It is of Him and none else.
1 John 5:20 And we know that the Son of God is come, and hath given us an understanding, that we may know him that is true, and we are in him that is true, even in his Son Jesus Christ. This is the true God, and eternal life.
No one can say this except, by the Holy Spirit that is baptized in us of the Spirit of Christ and God the Father.
God gives us His own witness of His Son, Now this is true faith, which without it is impossible to please God.
1 John 5:9-12 If we receive the witness of men, the witness of God is greater: for this is the witness of God which he hath testified of his Son. He that believeth on the Son of God hath the witness in himself: he that believeth not God hath made him a liar; because he believeth not the record that God gave of his Son. And this is the record, that God hath given to us eternal life, and this life is in his Son. He that hath the Son hath life; and he that hath not the Son of God hath not life.
In Christ: Phillip