6 I am amazed how quickly you are deserting the One who called you by the grace of Christ and are turning to a different gospel -Galatians 1:6 BSB
Paul was awestruck by how the believers in the church of Galatia were so quickly deserting the truth for a lie. Here, the different gospel, which is a false gospel, had to do with salvation, as indicated with the phrase “the grace of Christ.”
“Grace” has to do with God’s act of kindness toward men, which we never merited, deserved, or can even achieve apart from the work of the Holy Spirit and the gift of God. Christ paid the debt of sin by shedding His blood on the cross. Salvation is a gift, something we cannot obtain through our efforts. The Galatians were drifting speedily from the grace that God provided through Christ, putting them in a dangerous position.