I missed my cue, but better late than never:
The normative way of stating how to be saved (the kerygma/GRFS) in the NT is “Accept Christ Jesus as Lord” (as in 2Cor. 4:5 & Col. 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).
Although perfection is not achieved in this life,
the necessity of learning the didache in order to strive for perfection indicates the need for perseverance or to keep on learning and growing spiritually until we die physically (Phil. 3:12-14).