God's call to Christ saves believers. The call comes through hearing or reading the word of God. The effective call saves all those who receive the engrafted word (James 1:21). The Holy Spirit convicts us (John 16:7-11). The Spirit of God changes our hearts.
God saves all who believe on the Lord Jesus Christ (Acts 16:31). God commands all people everywhere without exception to repent (Acts 17:30). The benevolent will of God's grace common to all is for sinners to turn away from the old life and receive new life in Christ. God has no pleasure in the death of the wicked (Ezekiel 33:11). None are turned away who truly come by faith to Christ (John 6:37).
God saves all who believe the gospel of Christ (1 Corinthians 15:1-4). Some may hear the gospel and even be convicted by the Holy Spirit without being convinced to come to Christ (John 16:7-11). However, the effective call goes beyond conviction. The Holy Spirit enables you to confess Jesus Christ as your Lord (1 Corinthians 12:3).
God saves all whose hearts are open to the gospel of Christ (Acts 16:14). We are awakened to the truth of the gospel. We are willing to receive and believe the Lord Jesus Christ (John 1:11-13). The gospel has not come in word only, but with power and much assurance through the Holy Spirit (1 Thessalonians 1:5).
