Salvation is received through repentance toward God and faith toward the Lord Jesus Christ. By the washing of regeneration and renewing of the Holy Spirit, being justified by grace through faith, man becomes an heir of God, according to the hope of eternal life.
Luke 24:47, John 3:3, Romans 10:13-15, Ephesians 2:8, Titus 2:11, 3:5-7
The inward evidence of salvation is the direct witness of the Spirit.
Romans 8:16
The outward evidence to all men is a life of righteousness and true holiness.
Ephesians 4:24, Titus 2:12