In the Christian life, faith can be seen in two ways. First, there is the single act of faith in Jesus that results in our salvation (John 3:16; 6:40; 20:31; Acts 4:12; 16:31; Eph 2:8-9). This refers to our justification before God and is a one-time event that is never repeated. Justification is declared because God has imputed His righteousness to us at the moment we trusted in Jesus as our Savior (Rom 5:17; 2 Cor 5:21; Phil 3:9). This results in our eternal salvation and is conditioned only on faith in Jesus (Rom 3:28; Gal 2:16), for “there is salvation in no one else; for there is no other name under heaven that has been given among men by which we must be saved” (Act 4:12). Second, after being born again, God calls us to a walk of faith where we continually trust Him at His Word and obey His directives (2 Cor 5:7; Heb 10:38; 11:6). The walk of faith focuses largely on what we think (Rom 12:1-2), say (Eph 4:15; Col 4:6), and do (Jam 1:22). God’s Word sanctifies us as we walk by faith in Him (John 17:17), and this glorifies Him and advances us to spiritual maturity. Justification sets the ground for sanctification, but does not guarantee it, as the Christian must possess positive volition and make ongoing good choices that are rooted in divine viewpoint. Some believers, like the prodigal son, may turn to a sinful lifestyle.

Faith that Justifies us Before God

Our righteous standing before God starts the moment we believe in Jesus as our Savior. This is the Jesus of Scripture and history, and not a fake Jesus like those taught by Mormons, Jehovah’s Witnesses, or one we create in our imagination. Jesus is the second Person of the Trinity; He is God in the flesh (John 1:1, 14; 20:28; Col 2:9). Prior to His incarnation, God the Son was involved in planning our salvation with God the Father and God the Holy Spirit. God the Father sent God the Son into the world to fulfill a divine mission. God’s Word tells us, “The Father sent the Son to be the Savior of the world” (1 John 4:14; cf., John 4:34; 7:29; 8:29; 20:21). The Father’s great mission was to make salvation available to everyone. This act of God was done in love, as it is written, “For God so loved the world, that He gave His only begotten Son, that whoever believes in Him shall not perish, but have eternal life” (John 3:16), and “He loved us and sent His Son to be the atoning sacrifice for our sins” (1 John 4:10; cf., Rom 5:8). The Son agreed with the Father, saying, “I have come down from heaven, not to do My own will, but the will of Him who sent Me” (John 6:38), and “The Son of Man has come to seek and to save that which was lost” (Luke 19:10). When God the Son came into the world and took upon Himself humanity, He executed His mission flawlessly.

The divine mission began in time and space nearly two thousand years ago when God the Son took upon Himself humanity. The writer to the Hebrews cites the words of God the Son as He was about to enter the world, saying, “Therefore, when He comes into the world, He says [to God the Father], ‘Sacrifice and offering You have not desired, but a body You have prepared for Me’” (Heb 10:5). The third Person of the Trinity, God the Holy Spirit, facilitated the mission by bringing about the hypostatic union within the womb of the virgin Mary (Isa 7:14; Luke 1:30-35; Gal 4:4). The angel Gabriel told Mary, “The Holy Spirit will come upon you, and the power of the Most High will overshadow you; and for that reason the holy Child shall be called the Son of God” (Luke 1:35). At the moment of conception in the womb of the virgin Mary, undiminished deity was combined forever with perfect humanity. Eventually, Jesus was born, and God “became flesh, and dwelt among us, and we saw His glory, glory as of the only begotten from the Father, full of grace and truth” (John 1:14). The apostle Paul tells us, “For in Him all the fullness of Deity dwells in bodily form” (Col 2:9).

God’s Word also informs us that Jesus was a Jew, born a son of Abraham, in the line of David (Matt 1:1), the promised Messiah (Matt 1:1, 16-17; John 1:41). Jesus grew in human wisdom (Luke 2:40, 52) and lived a perfectly righteous life before God and man. The record of Scripture is that Jesus “knew no sin” (2 Cor 5:21), was “without sin” (Heb 4:15), “committed no sin” (1 Pet 2:22), and “in Him there is no sin” (1 John 3:5). In His humanity, Jesus walked in perfect conformity to God the Father’s holy character and divine revelation. This is important, for Jesus’ sinless life qualified Him to go to the cross and pay the ransom price for our sins. Jesus said, “the Son of Man did not come to be served, but to serve, and to give His life a ransom for many” (Mark 10:45).

When the divinely appointed time came for Jesus to go to the cross (John 12:23; 13:1), He went willingly (Isa 53:10; John 10:18). Just hours before the crucifixion, Jesus said to His Father, “I glorified You on the earth, having accomplished the work which You have given Me to do” (John 17:4). Then He went to the cross and “offered Himself without blemish to God” (Heb 9:14), and “gave Himself for our sins” (Gal 1:4). Jesus paid our sin debt by means of His “precious blood, as of a lamb unblemished and spotless, the blood of Christ” (1 Pet 1:19). While on the cross, “Christ died for our sins” (1 Cor 15:3), and He died in our place, “the just for the unjust, so that He might bring us to God” (1 Pet 3:18).

Jesus’ death on the cross was a one-time event, as He “offered one sacrifice for sins for all time” (Heb 10:12). After Jesus paid for all our sins, “He said, ‘It is finished!’ And He bowed His head and gave up His spirit” (John 19:30). Jesus’ death on the cross satisfied every righteous demand of God the Father concerning the payment for our sins (Rom 3:25), for “He is the atoning sacrifice for our sins, and not only for ours but also for the sins of the whole world” (1 John 2:2). Jesus paid the price for all our sins. There’s nothing more to pay. After Jesus died, He was placed in a grave and was resurrected to life on the third day (Acts 2:23-24; 4:10; 10:40; 1 Cor 15:3-4), never to die again (Rom 6:9). Because Christ died for everyone (John 3:16; Heb 2:9; 1 John 2:2), everyone is savable. The Bible tells us that God has brought “salvation to all men” (Tit 2:11), that He “desires all men to be saved” (1 Tim 2:4), and is “not wishing for any to perish” (2 Pet 3:9).

Once we understand who Christ is, as God in the flesh (John 1:1, 14), and what He has accomplished for us on the cross—having died for our sins, was buried, and raised again on the third day (1 Cor 15:3-4)—we can then exercise our faith by trusting in Him as our Savior. To receive salvation, the unbeliever is told to “believe in the Lord Jesus, and you will be saved” (Acts 16:31a). Jesus is the object of our faith. To believe in Christ as our Savior means we trust Him to accomplish for us what we cannot accomplish ourselves: eternal salvation from the lake of fire.

Faith in Christ is the only condition for salvation. Faith does not save; Christ saves. Faith is merely the instrument by which we receive the free gift of God, which is eternal life. Though the gift was very expensive for the Lord, it is offered totally free to us, for “the free gift of God is eternal life in Christ Jesus our Lord” (Rom 6:23). And it is “by grace you have been saved through faith; and that not of yourselves, it is the gift of God; not as a result of works, so that no one may boast” (Eph 2:8-9). Only the empty hand of faith accepts the gift. It offers nothing but is open to receive that which is offered by another. God’s gift is available to everyone, for “whoever believes in Him shall not perish, but have eternal life” (John 3:16), and “he who believes has eternal life” (John 6:47). No payment is required from us to receive it. It’s a free gift.

The only sin that keeps a person out of heaven is the sin of unbelief, the individual choice NOT to trust in Jesus as one’s Savior. The one who rejects Jesus as Savior is judged by God on the sole ground that “he has not believed in the name of the only begotten Son of God” (John 3:18). These are the ones who “are always resisting the Holy Spirit” (Acts 7:51; cf. John 16:8), who “do not believe” in Jesus as their Savior (John 16:9), and “are unwilling to come” to Him so that they “may have life” (John 5:40). Those who willingly reject Christ as Savior will, after death, experience eternal separation and punishment away from God for all eternity, for “if anyone’s name was not found written in the book of life, he was thrown into the lake of fire” (Rev 20:15). This need not happen. Hell is avoidable for the one who trusts in Christ as Savior, for “whoever believes in Him shall not perish, but have eternal life” (John 3:16), and “He who believes in the Son has eternal life; but he who does not believe in the Son will not see life, but the wrath of God abides on him” (John 3:36). Salvation is a free gift from God (Rom 3:24; 6:23), offered by grace alone (Eph 2:8-9), through faith alone (Gal 2:16; 3:26; 2 Tim 3:15), in Christ alone (John 14:6; Acts 4:12), totally apart from human works (Rom 4:4-5; Eph 2:8-9; Tit 3:5). For lost sinners, the matter is simple: “Believe in the Lord Jesus, and you will be saved” (Acts 16:31).

Once we have trusted in Christ for salvation, God then bestows on us forgiveness of sins (Acts 10:43; Eph 1:7), the gift of righteousness (Rom 5:17; Phil 3:9), eternal life (John 10:28), and many other blessings (Eph 1:3). And having entered into a relationship with God through Christ (John 1:12; Gal 3:26), we are then called to a life of holiness and righteousness (1 Pet 1:15-16), as we learn His Word (2 Tim 2:15; 3:16-17; 1 Pet 2:2; 2 Pet 3:18), walk by faith (2 Cor 5:7; Heb 10:38), and advance to spiritual maturity (Heb 6:1). This new walk with God will honor Him and edify others (E...