I see you prefer to ask questions than answer them.
If you are asking what GW says is GRFS, my answer is this:
“Believe in the Lord Jesus.” (ACTS 16:31) This is GRFS in a nutshell.
Jesus Himself expressed GRFS even more succinctly using three, four and five letter words: “Ask… seek… knock…” (MT 7:7). This indicates that God graces every sinful soul with the ability or opportunity to understand how to be saved (MT 7:7, cf. 1TM 2:3-4, EZK 33:11), which might be called “
seeking grace” (TIT 2:11). As Hebrews 11:6 states: “he [God] rewards those who earnestly seek him” (cf. IS 45:19). Seeking God is the beginning of saving faith, and not seeking God or rejecting His salvation in Christ is the essence of evil atheism or faith in I-dolatry (RM 3:11, 1:18-23). All humans sin, but every sinner has the opportunity to repent/have saving faith (per RM 1:20, 2:7, 3:21-22, 4:16 & 5:8-19).
Thus, sinful humanity retains the image of God or moral free will, so every normal adult soul is able by faith to choose to seek salvation–or not (cf. DT 30:19). That is why Paul went “every Sabbath to the synagogue, trying to persuade Jews and Greeks” (ACTS 18:4)! “He witnessed to them from morning till evening, explaining about the kingdom of God, and from the Law of Moses and from the Prophets he tried to persuade them about Jesus.” (ACTS 28:23b) “Some were convinced by what he said, but others would not believe. (ACTS 28:24) They disagreed among themselves and began to leave after Paul made this final statement: The Holy Spirit spoke the truth to your ancestors when he said through Isaiah the prophet, “You will be ever hearing but never understanding; you will be ever seeing but never perceiving, for this people’s heart has become calloused.” (ACTS 28:25-27a, cf. 2TM 3:7)
GRFS may be denoted by the use of the Greek word kerygma, meaning proclamation or preaching, referring to the good news (Gospel) concerning salvation to heaven and from a just hell (the DOD, cf. RM 1:16, GL 1:6-12, CL 1:21-23). This Gospel was preached by Peter (in ACTS 2:22-24) and summarized by Paul (in 1CR 15:1-8). The salient points include: Jesus was a man, accredited by God (to be Messiah), who died on a cross, but who was raised or resurrected from the dead. Messiah is the Way to heaven.
An obvious question to ask at this point is,
“What is GRFS for those who have never heard of Jesus?” (which includes everyone living B.C. and millions of people who have lived A.D.) If God loves the world (JN 3:16) and wants everyone to be saved (2TM 2:3-4, EZK 33:11), then He must provide an opportunity. God’s just judgment is illustrated by Jesus in the Parable of the Talents (MT 25:14-29), which indicates that God will judge souls on the basis of the truth (Word = Christ per JN 1:1f.) they have received.
There are two main ways God/Christ is encountered:
1. General revelation, which includes meditating on the natural world or God’s supernatural work and moral conscience. Paul said men are without excuse, both because God’s eternal power and divine nature (love) are manifested by creation (RM 1:20), and because a proto-gospel has been proclaimed to everyone under heaven implicitly or in pre-NT foreshadowings (CL 1:23, RM 10:13-18, GL 3:8). He also taught that all normal humans have an inner conscience or “common” sense (RM 2:14-16), which manifests morality or a moral Authority in every culture.
2. Special revelation (1PT 1:8-12), which refers mainly to divinely inspired NT teaching regarding God’s history of salvation. Again, the Parable of the Talents indicates that souls are saved via faith in God/ Christ as revealed (cf. 1CR 10:1-5). Truthseekers around the world in all times are pilgrims at various places along the road of life, and all true roads eventually lead to the Way to eternal life in heaven (JN 14:6, ACTS 24:14, PHP 2:10-11). All truth leads to One Way.
Regarding the third mode of revelation (NT),
the kerygma or GRFS can be stated in various ways, which may cause confusion. Some statements (e.g. ACTS 16:31, quoted previously, & EPH 2:8-9) are in terms of believing right, and others (e.g. MT 7:21, “only he who does the will of my Father will enter heaven”, cf. GL 6:7-9 & EPH 2:10) are in terms of behaving right. This prompts the question: Is salvation obtained by believing God’s words or by doing God’s works? The answer is indicated by John 6:29: “The work of God is to believe in the one [Messiah/Christ] He has sent.” As Jesus stated (in JN 14:6): “I am the way and the truth and the life. No one comes to the Father except through me.”
The mind of Jesus is truth incarnate (JN 1:14), and all truth manifests the Spirit of Christ or God (1JN 5:6).
The work of God (GRFS) is to seek and believe the truth, and part of the truth is that no one comes to know God as Father except through faith in God’s truth embodied as God the Son.
Notice that
the kerygma/Gospel fulfills and supersedes OT revelation, but does not contradict its correct interpretation (HB 8:6-13). However, the NT revelation of GRFS will never become obsolete (PHP 2:9-11, RV 22:12-13). Thus, new revelations from God’s Holy Spirit will not contradict the Gospel, although they may express its truth in a different way or form, or else God would be inconsistent or tricky. There may be new wine skins, but no new wine (MT 19:17). Post-NT inspiration must be didachaic information regarding contemporary moral or political issues.
The kerygma/GRFS should be every Christian’s creed, and only belief in this crucial truth should be viewed as a test for orthodoxy or heresy. As Paul wrote in Romans 10:9, “If you declare with your mouth, “Jesus is Lord,” and believe in your heart that God raised him from the dead, you will be saved.” Conversely, judgments concerning a person’s spiritual orientation or ultimate destiny should not be made on the basis of didachaic or secondary doctrines. (If any judgment is made, it should begin with a self-examination per MT 7:1&5, 2CR 13:5-8).
A major reason many Christians throughout history have not manifested the love and unity of God’s Spirit (EPH 4:3) as well as they should is because of failure to realize this truth. If they did, it would free them to speak honestly and fellowship without becoming unduly upset about relatively minor issues. They would receive God’s blessing as peacemakers, who draw inclusive circles around people based on the kerygma rather than denominational lines between them due to didachaic differences. Jesus prayed for spiritual unity (cf. JN 17:20-23, “May they be one…”). Thus, unity regarding the Gospel is more important than accuracy regarding doctrinal details.
The normative way of stating the kerygma/GRFS in the NT is “Accept Christ Jesus as Lord” (as in 2CR 4:5 & CL 2:6). The main points of Christian orthodoxy implicit in this statement can be explained or elaborated as follows:
- There is a/one all-loving and just Lord or God (DT 6:4, JN 3:16, 2THS 1:6), who is both able (2TM 1:12) and willing (1TM 2:3-4, EZK 33:11) to provide all morally accountable human beings salvation or heaven—a wonderful life full of love, joy and peace forever.
- Human beings are selfish or sinful (RM 3:23, 2TM 3:2-4, CL 3:5), miserable (GL 5:19-21), and hopeless (EPH 2:12) or hell-bound at the judgment (MT 23:33 & 25:46) when they reject God’s salvation (JN 3:18, RM 2:5-11).
- Jesus is God’s Messiah/Christ and incarnate Son, the way that God has chosen (JN 3:16, ACTS 16:30-31, PHP 2:9-11) of providing salvation by means of his atoning death on the cross for the payment of the penalty for the sins of humanity (RM 3:22-25 & 5:9-11), followed by his resurrection to reign in heaven (1CR 15:14-28).
- Thus, every person who hears the NT Gospel needs to repent and accept God’s justification in Jesus as Christ/Messiah the Lord or Supreme Commander (LK 2:11, JN 14:6, ACTS 16:31), which means trying to obey His commandment to love one another (MT 22:37-40, JN 13:35, RM 13:9)—forever (MT 10:22, PS 113:2).
- Then God’s Holy Spirit will establish a saving relationship with those who freely accept Him (RV 3:20) that will eventually achieve heaven when by means of persevering in learning Truth/God’s Word/sanctification everyone cooperates fully with His will (JN 14:6, 17&26, RM 8:6-17, GL 6:7-9, EPH 1:13-14, HB 10:36, 12:1, JM 1:2-4).