I've heard people argue that it's faith "of" Jesus Christ and not our faith before when quoting Galatians 2:16 - Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified.
Yet other translations read faith in Jesus Christ.. (NKJV, ESV, NIV, NAS etc..).
In 1 Peter 1:9, we read - receiving the end of your faith--the salvation of your souls.
So it's our faith, yet although we are responsible to believe and will be held accountable for unbelief (John 3:18), saving faith is never exclusively a matter of human decision. Unless the Father draws us in (John 6:44) and enables us/unless it has been granted to him by My Father (John 6:65) we would NEVER come to Christ all by ourselves.
The approach of the soul to Christ is initiated by the Father, but He doesn't force us to choose Christ, we must choose Him. The impulse to faith in Christ comes from God.