(imo) there is not a case that can be made that one must "put their faith in Christ" to be found in the NT.
This is a matter of semantics. It is easier to say as a command that one need to "put their faith in Christ," or "have faith" or simply "believe" in Christ. They all mean the same thing. The command is given in many places such as Acts 16:31; 10:43; etc. And many times in the gospels as well does Christ command the same thing such as in John 5:24.
Rather, I see that one is to Love the Lord Jesus Christ and within that love is the capacity of "trust." As I shared with DHK, the word "Faith" is also most appropriately used as "faithful" or "faithfulness" throughout the epistles, and Luke uses the same word twice in his account.
In the NT the word "trust" is used very little. Your argument holds no water here.
Let me demonstrate.
Here is a comparison of the words that are used for faith, believe, and trust:
Pisteo (verb)
Believe (239); commit unto (4); commit to (1); be committed to (1); to be put in trust with (1);
Pistis (noun)
Faith (229); assurance (1); belief (1); them that believe (1); fidelity (1)
Pistos (adjective)
Faithful (53); believe (6); believing (2); true (2); faithfully (1); believer (1); sure (1)
Elpis (noun)
Trust (18); hope (10); hope for (2); brings hope for (1)
Peritho (verb)
Persuade (22); trust (8); obey (7); have confidence (6); believe (3); be confident (2)
Note that in the NT the word pistew along with its two derivatives is used over 500 times. It is used as an adjective about 60 times where it is often translated faithful. All of the other times it is translated as faith or believe.
The word that is used to translate "trust" comes only from two words. It is used only 10 times as a primary translation from elpis which is in noun form, and 8 times from peritho in its verb form for a total of 18 times, the latter not even being its primary translation. But that is just 18 usages of the word compared to about 450 for faith and believe. Your argument holds no water.
Trust is used more often in the OT, but very little in the NT. Paul and John use faith and believe almost exclusively compared to the word "trust."
He first loved us resulting in our loving Him. One cannot separate trust from that Love.
The verse is found here:
1 John 4:19 We love him, because he first loved us.
CONTEXT:
1 John 4:16 And we have known and
believed the love that God hath to us. God is love; and he that dwelleth in love dwelleth in God, and God in him.
--The context is one of faith and belief, not trust.
Besides, "putting one's faith" indicates some manner of human work, when "trust" involves no work but a complete reliance upon what is assured that translates into actions and decision making.
Besides "having faith" which is not a human work.
Romans 4:4 Now to him that worketh is the reward not reckoned of grace, but of debt.
5 But to him that worketh not, but believeth on him that justifieth the ungodly, his faith is counted for righteousness.
The one that believeth on him (not worketh) is justified. Believing (
having faith; putting faith; believing; etc.) is the one that is justified. You are simply playing a game of semantics. Faith is not a work.
DHK, and I suppose others, may disagree because they consider "faith" and "trust" as synonymous. But as I expressed to DHK, they are not. Faith may fail, for it is powered by human conditions and circumstances. Trust is not so. Trust is that complete confidence of not only what is an assured promise, but is based upon the inability of betrayal.
Faith in Christ never fails for Christ never fails.
I can put faith in my car (the object of my faith here changes). But a few days ago my car didn't start. It failed (minus 30 windchill outside). Why? My car is man-made. Man fails; God never. When the object of my faith is the Lord, I know he never fails. His promises are true. They never fail.
Numbers 23:19 God is not a man, that he should lie; neither the son of man, that he should repent: hath he said, and shall he not do it? or hath he spoken, and shall he not make it good?
As I expressed to DHK, the word trust is clearly understood by even a small child, and the word faith is not.
Again, semantics. Jesus taught that one must have faith as a child. That was the context of his teaching. The Bible uses the word faith, not trust. I have demonstrated that. We are saved by faith. How can faith fail. Salvation is by faith and faith alone. Sola fide! not sola trust.
Though I do not personally like the words "progressive" and "sanctification" being put together, I do agree with what most folks mean when they do use the two together.
There is no doubt that the believer will mature in becoming closer (or more "like") or conformed to the image of Christ.
What I don't agree with is the thinking that one becomes more "holy" as if the matter was somehow either earned or on some type of dimmer switch that allows for partial current flow.
As far as a believer is concerned Jesus said lay your treasure up in heaven.
Paul spoke of rewards in heaven.
He said there awaits for me a crown of righteousness. There are many crowns and rewards that one can earn. There is also reward that one may lose at the Judgement Seat of Christ. See 1Cor.3:11-15.
Rather, one is or is not holy. There is no inbetween. One cannot progress to more holiness any more than the OT priests could. They either met the standard of being holy, or did not.
That is positional holiness. It happens at salvation.
What did Jesus mean when he said:
Matthew 5:48 Be ye therefore perfect, even as your Father which is in heaven is perfect.
--Can one be as perfect as God is perfect? Of course not. But it is a goal to work toward, a goal of holiness and maturity in the Christian life. We aren't there yet. But every day should be a new day full of new challenges and new walk with the Lord, hopefully "sweeter than the day before."
This is part of the problem when folks adopt the typical teaching of progressive sanctification, and not understanding that one cannot be "more right with God if..." rather than comprehending one is or is not right with God. That maturing as a believer is not being "more holy."
The word holy literally means "set apart," which initially happened at salvation.
Those Christians who dabble in the world are yet saved but not set apart as far as their walk with God is concerned. Their lives are not holy. God constantly calls us to a life of holiness.
Be ye holy as I am holy. We will never attain it, but we must work toward it in our walk with God.