what does the bible say?
Scripture teaches that faith in the Lord saves and that, once a person is saved, his or her salvation is secure. Though belief in Jesus applies to the New Testament only, his death and atonement for sins was efficacious for all people at all times, including Old Testament believers. For example, Abraham’s faith in God was “counted . . . to him as righteousness” (Genesis 15:6; Romans 4:3). The New Testament makes it clear that salvation comes through faith in Jesus as Lord and Savior (Romans 10:9). Also, the Bible teaches that once saved, believers cannot lose their salvation (John 10:28; 1 John 5:13). In 2 Corinthians 13:5, Paul challenges his readers to be certain they have truly come to faith in Jesus Christ, because the answer to this question determines where we spend eternity. When we receive salvation, we are made into a “new creation” (2 Corinthians 5:17), and this means our actions should align with our new, God-given identity in Christ (James 2:14-16). Changed behavior should include the fruits of the Holy Spirit, which are “love, joy, peace, patience, kindness, goodness, faithfulness, gentleness” and “self-control” (Galatians 5:22-23). Our changed ways should also include obeying God and loving others well since these demonstrate our love for God (1 John 5:2). These signs of a changed life often manifest gradually in the process of God sanctifying His children (Philippians 1:6), yet because of our sin nature (Romans 3:23), believers never become perfect during their time on Earth. Even so, some who call themselves believers do not lead lives that testify to that; the Bible indicates that this doesn’t mean they lost their “salvation,” but likely means they were never actually saved (1 John 2:19).