Definition of faith-rest:
You place your trust in God, in His Word, in His promises or in Bible doctrine, and you step back and allow God to keep His Word, or fulfill His promises, or vindicate the doctrine which is in your soul.
The believer must be in fellowship and have a true object for his faith. That is, what he believes must be true. Believers are constantly placing their faith in things which are false and which are not promised by God. Whether in the Old or New Testament, the believer must have no unconfessed sin in his life (when you name your sins to God, any unknown sins are forgiven as well—1John 1:9).
As an aside, having been saved and then living for 10 or 20 years, does not mean you have gone from being an infant believer to being an adult believer. Spiritual growth is always a matter of time, grace and doctrine (2Peter 3:18).
No one is born again spiritually mature, and no one reaches spiritual maturity simply because they believe in Jesus Christ, and then live for a few years (or, live for a few years and attend church). Although church is designed as the environment for our spiritual growth, attending a church does not guarantee spiritual growth.
And without faith it is impossible to please Him, for whoever would draw near to God must believe that He exists and that He rewards those who seek Him (Heb. 11:6).
We look not to the things that are seen but to the things that are unseen. For the things that are seen are transient, but the things that are unseen are eternal (2Cor. 4:18).
Trust in Jehovah with all your heart, and lean not to your own understanding (Prov.3:5).
We walk by faith, not by sight (2Cor. 5:7).
Whether we like it or not, faith is an integral part of the Christian life. However, it is important to note that most of us have great faith. My point is, everyone has faith, Christians and non-Christians alike.
Although this may seem elementary, faith must have an object. You cannot just have faith in some nebulous, undefined spiritual thing. In fact, you must have more than just faith in some sort of God-entity. Faith requires specific objects and specific promises to place our faith in. Furthermore, for your faith to have any spiritual impact, these things you place your faith in must be true.
The believer must have something in which to believe. Therefore, we must know the promises of God, the essence of God and/or the doctrines of the Bible. Faith requires an object, and that object must be true and accurate.
When faced with a problem, a time of testing or some difficulty in life, the believer places his faith in an applicable promise of God or a doctrine from the Bible. This may or may not require action on the part of the believer. Each situation is different. Let me illustrate this with you and your child: You are teaching your son to swim, and, as a part of this, you want him to jump into the water where you are. He has to trust you as he jumps into the swimming pool where you are standing. That requires action on his part.
That same child depends upon you for safety at home. In this case, the child does nothing. He doesn’t add extra locks to his windows, nor does he set up motion detectors in his room or keep a loaded gun on his night stand next to his Barney books. His trust is in you to keep him safe (quite obviously, doing these things would never occur to most children, because their faith in you for their safety at home is so strong). In this illustration, the child does not act.
The key to faith-rest is moving towards being occupied with Jesus Christ. Being occupied with Christ means that you will automatically apply the faith-rest technique to any appropriate circumstance. Psalm 37:4–7a Eph. 4:11–16 Heb. 12:1–2 This comes from learning the Word of God and growing spiritually.
As you become occupied with Christ, you view your life and the circumstances of your life in the light of eternity. He has made everything beautiful in its time. Also, He has set eternity in their heart, without which man cannot find out the work that God makes from the beginning even to the end (Eccles. 3:11). Israel is delivered by Jehovah with everlasting salvation. You will not be ashamed nor disgraced to all eternity (Isa. 45:17). For so says the high and lofty One Who inhabits eternity, and His name is Holy: I dwell in the high and holy place, even with the contrite and humble of spirit [= the grace orientated believer]; to revive the spirit of the humble and to revive the heart of the contrite ones (Isa. 57:15). Spiritual growth leads to seeing life in the light of eternity: But grow in grace and knowledge of our Lord and Savior, Jesus Christ. To Him be the glory, both now and to the day of eternity
Since all men have faith, there is no merit in having faith. The merit is in the object of faith. We must place our faith in that which is true.