Many think Grace or faith is the answer, but it is not.
I believe grace is the gift.
Rom 6:23 For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord.
(NOTE: Sins required wage is DEATH.)
Rom 3:23 For all have sinned, and come short of the glory of God;
(NOTE: ALL are sinners & deserve DEATH)
Eph 2:8 For "by grace" "are ye saved" "through faith"; and that not of yourselves: "it is the gift of God":
NOTE: By grace, you will be saved, when you apply faith to Christ's sin payment & resurrection. God's Grace is he Gift!)
Thayer's Greek/English Lexicon defines the Greek word (charis) translated gift as: A Gift of Grace, a favor received without merrit.
Eph 2:5 Even when we were dead in sins, hath quickened us together with Christ, (by grace ye are saved
Rom 5:15 But not as the offence, so also is the ""free gift"". For if through the offence of one many be dead, much more ""the grace of God"", and the ""gift by grace"", which is by one man, Jesus Christ, hath abounded unto many.
KJV Dictionary Definition - Grace: Appropriately, the free unmerited love and favor of God, the spring and source of all the benefits men receive from him.
Rom 5:2 By whom also we have access by faith into this grace wherein we stand, and rejoice in hope of the glory of God.
(NOTE: Faith, is the conduit/vehicle whereby we access, God's unearned/unmerited ""gift of grace"")
Rom 12:3 For I say, through the grace given unto me, to every man that is among you, not to think of himself more highly than he ought to think; but to think soberly, according as ""God hath dealt to every man the measure of faith"".
(NOTE: To those that believe faith is the gift mentioned in Eph 2:8. ""Although everyone has been dealt/given a measure of faith"". Only those that place their faith in Christ's sin payment & resurrection will be saved).
For those that believe salvation is the gift mentioned in Eph 2:8. Reread the verse, it simply doesn't say by salvation are ye saved.
Titus 2:11 For the grace of God that bringeth salvation hath appeared to all men,
(NOTE: The gift of God's grace has a name. For God so loved the world (Jn 3:16); he gave us Jesus the Christ)