Since individuals are chosen for salvation through faith in the truth, 2 Thessalonians 2:13, then our faith in Christ provides our access to God's grace, Romans 5:1-2. We are made alive together with Christ (Ephesians 2:5) thus we are regenerated, made alive, after God credits our faith as righteousness and transfers us into Christ, Colossians 1:13.
Sometimes false teachers call their doctrine of Irresistible Grace the "Gift of Faith" referring to a pre-salvation instillation of God given faith in the individuals supposedly chosen unconditionally before creation. This claim is of course false six ways from Sunday.
1) God's general and special revelation are gifts which we, as lost people, either rejected in whole or in part, or fully embraced. Thus the opportunity to place our faith in Christ is indeed a gift that not all people receive. For example, aborted babies.
2) Once saved (and born anew and indwelt) the Holy Spirit may bestow the "Gift of faith" upon some believers. But this post salvation gift cannot be conflated with our choice to believe to gain access to God's grace, Romans 5:1-2.
3) When are individuals chosen for salvation, before creation or after they have lived not as a people chosen for God's own possession? After, see 1 Peter 2:9-10. So there is no actual support for "unconditional election for salvation before creation of individuals. Rather Ephesians 1:4 refers to God choosing His Redeemer before creation, and therefore, God corporately chose those His Redeemer would redeem.
4) When God chooses individuals, during their physical lifetime, He chooses them "through faith in the truth" thus a conditional election for salvation. 2 Thessalonians 2:13
5) When God chooses individuals, during their physical lifetime, He chooses individuals some of which were poor in the eyes of the world, yet rich in faith and heirs to the kingdom promised to those who love God. James 2:5
6) God chooses individuals whose faith He credits as righteousness, so it is our faith, as flawed or imperfect as it may be, that God deems sufficient for His purpose, thus salvation does not depend on the person who wills or works to be saved, but upon God alone who determines who actually believes for the purpose of salvation.