It's either "faith" or both "salvation" and "faith". "This" is neuter, so you can't associate "this" with "saved" or "faith" by gender. But "this" always refers to a thing. The word "saved" is not a thing. The word "faith" is a thing. So the strongest argument is that "this" refers to "faith".
THE FAITH (NT)
If the NOUN has no DEFINITE ARTICLE, it could refer to
one's personal trust in Christ
faithful living
the body of Christian doctrine (
with the ARTICLE, cf. Acts 6:7; 18:8; 14:22; Gal. 1:23; 3:23; 6:10; Phil. 1:27; Jude 3,20)
Paul uses "faith" to
stimulate the faith of those already saved
In Titus 1:1Paul uses kata several times in the opening chapter.
according to faith, Titus 1:1
according to piety, Titus 1:1
according to the command, Titus 1:3
according to common faith, Titus 1:4
according to appoint, Titus 1:5 (compound word)
according to the teaching, Titus 1:9
Obviously there is a standard of truth and conduct (cf. Titus 3:5,7).
JOHN'S USE OF THE VERB "BELIEVE"
John primarily combines "believe" with
PREPOSITIONS
eis means "into." This unique construction emphasizes believers putting their trust/faith in Jesus.
into His name (John 1:12; 2:23; 3:18; 1 John 5:13)
into Him (John 2:11; 3:15,18; 4:39; 6:40; 7:5,31,39,48; 8:30; 9:36; 10:42; 11:45,48; 12:37,42)
into Me (John 6:35; 7:38; 11:25,26; 12:44,46; 14:1,12; 16:9; 17:20)
into the One He has sent (John 6:28-29)
into the Son (John 3:36; 9:35; 1 John 5:10)
into Jesus (John 12:11)
into Light (John 12:36)
into God (John 12:44; 14:1)
ev means "in" as in Mark 1:15; John 3:15
the DATIVE CASE with no PREPOSITION (John 4:50; 1 John 3:23; 5:10)
hoti, which means "believe that," gives content as to what to believe. Some examples are
Jesus is the Holy One of God (John 6:69)
Jesus is the I Am (John 8:24)
Jesus in the Father and the Father in Him (John 10:38)
Jesus is the Christ (John 11:27; 20:31)
Jesus is the Son of God (John 11:27; 20:31)
Jesus was sent by the Father (John 11:42; 17:8,21)
Jesus is one with the Father (John 14:10-11)
Jesus came from the Father (John 16:27,30)
Jesus identified Himself in the covenant name of the Father, "I Am" (John 8:24; 13:19)
Biblical faith is in both a person and a message! It is evidenced by obedience, love, and perseverance.
Believe, Trust, Faith, and Faithfulness in the Old Testament
Opening Statement
It needs to be stated that the use of this theological concept, so crucial to the NT, is not as clearly defined in the OT. It is surely there, but demonstrated in key selected passages and persons.
The OT blends
the individual and the community
the personal encounter and covenant obedience
Faith is both personal encounter and daily lifestyle! It is easier to describe in the life of a faithful follower than in a lexical form (i.e., word study). This personal aspect is best illustrated in
Abraham and his seed
David and Israel
These men met/encountered God and their lives were permanently changed (not perfect lives, but continuing faith). Testing revealed weaknesses and strengths of their faith encounter with God, but the intimate, trusting relationship continued through time! It was tested and refined, but it continued as evidenced by their devotion and lifestyle.
Main root used
אמן (BDB 52, KB 63)
VERB
Qal stem ‒ to support, to nourish (i.e., 2 Kgs. 10:1,5; Esther 2:7, the non-theological usage)
Niphal stem ‒ to make sure or firm, to establish, to confirm, to be faithful or trustworthy
(1) of men, Isa. 8:2; 53:1; Jer. 40:14
(2) of things, Isa. 22:23
(3) of God, Deut. 7:9; Isa. 49:7; Jer. 42:5
Hiphil stem ‒ to stand firm, to believe, to trust
(1) Abraham believed God, Gen. 15:6
(2) the Israelites in Egypt believed, Exod. 4:31; 14:31 (negated in Deut. 1:32)
(3) Israelites believed YHWH spoke through Moses, Exod. 19:9; Ps. 106:12,24
(4) Ahaz did not trust in God, Isa 7:9
(5) whoever believes in it/him, Isa. 28:16
(6) believe truths about God, Isa. 43:10-12
NOUN (MASCULINE) #8210; faithfulness (i.e., Deut. 32:20; Isa. 25:1; 26:2)
ADVERB ‒ truly, verily, I agree, may it be so (cf. Deut. 27:15-26; 1 Kgs. 1:36; 1 Chr. 16:36; Isa. 65:16; Jer. 11:5; 28:6). This is the liturgical use of "amen" in the OT and NT.
אמת (BDB 54, KB 68) <FEMININE NOUN, firmness, faithfulness, truth
of men, Isa. 10:20; 42:3; 48:1
of God, Exod. 34:6; Ps. 117:2; Isa. 38:18,19; 61:8
of truth, Deut. 32:4; 1 Kgs. 22:16; Ps. 33:4; 98:3; 100:5; 119:30; Jer. 9:5; Zech. 8:16
אמונה (BDB 53, KB 62), firmness, steadfastness, fidelity
of hands, Exod. 17:12
of times, Isa. 33:6
of humans, Jer. 5:3; 7:28; 9:2
of God, Ps. 40:11; 88:11; 89:1,2,5,8; 119:138
Paul’s use of this OT concept
Paul bases his new understanding of YHWH and the OT on his personal encounter with Jesus on the road to Damascus (cf. Acts 9:1-19; 22:3-16; 26:9-18).
He found OT support for his new understanding in two key OT passages which use the root אמן.
Gen. 15:6 ‒ Abram’s personal encounter initiated by God (Genesis 12) resulted in an obedient life of faith (Genesis 12-22). Paul alludes to this in Romans 4 and Galatians 3.
Isa. 28:16 – those who believe in it (i.e., God’s tested and firmly placed cornerstone) will never be
Rom. 9:33, "put to shame" or "be disappointed"
Rom. 10:11, same as above
Hab. 2:4 ‒ those who know the faithful God should live faithful lives (cf. Jer. 7:28). Paul uses this text in Rom. 1:17 and Gal. 3:11 (also note Heb. 10:38).
Peter’s use of the OT concept
Peter combines
Isa. 8:14 – 1 Pet. 2:8 (stumbling block)
Isa. 28:16 – 1 Pet. 2:6 (cornerstone)
Ps. 118:22 – 1 Pet 2:7 (rejected stone)
He turns the unique language that describes Israel, "a chosen race, a royal priesthood, a holy nation, a people for God’s own possession" from
Deut. 10:15; Isa. 43:21
Isa. 61:6; 66:21
Exod. 19:6; Deut. 7:6
and now uses it for the church’s faith in Christ (cf. 1 Pet. 2;5,9
John’s use of the concept
Its NT usage
The term "believed" is from the Greek term pisteuō. which can also be translated "believe," "faith," or "trust." F
or example, the NOUN does not occur in the Gospel of John, but the VERB is used often. In John 2:23-25 there is uncertainty as to the genuineness of the crowd’s commitment to Jesus of Nazareth as the Messiah. Other examples of this superficial use of the term "believe" are in John 8:31-59 and Acts 8:13,18-24. True biblical faith is more than an initial response. It must be followed by a process of discipleship (cf. Matt. 13:20-22,31-32).
Its use with PREPOSITIONS
eis means "into." This unique construction emphasizes believers putting their trust/faith in Jesus
into His name (John 1:12; 2:23; 3:18; 1 John 5:13)
into Him (John 2:11; 3:15,18; 4:39; 6:40; 7:5,31,39,48; 8:30; 9:36; 10:42; 11:45 48; 12:37,42; Matt. 18:6; Acts 10:43; Phil. 1:29; 1 Pet. 1:8)
into Me (John 6:35; 7:38; 11:25,26; 12:44,46; 14:1,12; 16:9; 17:20)
into the Son (John 3:36; 9:35; 1 John 5:10)
into Jesus (John 12:11; Acts 19:4; Gal. 2:16)
into Light (John 12:36)
into God (John 14:1)
ev means "in" as in John 3:15; Mark 1:15; Acts 5:14
epi means "in" or "upon," as in Matt. 27:42; Acts 9:42; 11:17; 16:31; 22:19; Rom. 4:5, 24; 9:33; 10:11; 1 Tim. 1:16; 1 Pet. 2:6
the DATIVE CASE with no PREPOSITION as in Gal. 3:6; Acts 18:8; 27:25; 1 John 3:23; 5:10
hoti, which means "believe that," gives content as to what to believe
Jesus is the Holy One of God (John 6:69)
Jesus is the I Am (John 8:24)
Jesus is in the Father and the Father is in Him (John 10:38)
Jesus is the Messiah (John 11:27; 20:31)
Jesus is the Son of God (John 11:27; 20:31)
Jesus was sent by the Father (John 11:42; 17:8,21)
Jesus is one with the Father (John 14:10-11)
Jesus came from the Father (John 16:27,30)
Jesus identified Himself in the covenant name of the Father, "I Am" (John 8:24; 13:19)
We will live with Him (Rom. 6:8)
Jesus died and rose again (1 Thess. 4:14)
Conclusion
Biblical faith is the human response to a divine word/promise. God always initiates (i.e., John 6:44,65), but part of this divine communication is the need for humans to respond.
repentance
faith/trust
obedience
perseverance
Biblical faith is
a personal relationship (initial faith)
an affirmation of biblical truth (faith in God’s revelation, i.e., Scripture)
an appropriate obedient response to it (daily faithfulness)
Biblical faith is not a ticket to heaven or an insurance policy. It is a personal relationship. This is the purpose of creation, humans being made in the image and likeness (cf. Gen. 1:26-27) of God. The issue is "intimacy."
God desires fellowship, not a certain theological standing! But fellowship with a holy God demands that the children demonstrate the "family" characteristics (i.e., holiness, cf. Lev. 19:2; Matt. 5:48; 1 Pet. 1:15-16). The Fall (cf. Genesis 3) affected our ability to respond appropriately. Therefore, God acted on our behalf (cf. Ezek. 36:27-38), giving us a "new heart" and a "new spirit," which enables us through faith and repentance to fellowship with Him and obey Him!
All three are crucial. All three must be maintained. The goal is to know God (both Hebrew and Greek senses) and to reflect His character in our lives. The goal of faith is not heaven someday, but Christlikeness every day!
Human faithfulness is the result (NT), not the basis (OT) for a relationship with God: human’s faith in His faithfulness; human’s trust in His trustworthiness. The heart of the NT view of salvation is that humans must respond initially and continually to the grace and mercy of God, demonstrated in Christ. He has loved, He has sent, He has provided; we must respond in faith and faithfulness (cf. Eph. 2:8-9 and 10)!
The faithful God wants a faithful people to reveal Himself to a faithless world and bring them to personal faith in Him.
Utley
Hope this will shed some clarity.re Faith.