The Bible gives us assurance of salvation through faith in Jesus Christ. If salvation were to be dependent on us obeying God’s moral commandments, then there is no way the Bible would be able to promise us assurance of salvation. We would always be living in insecurity as to whether we are good enough for God.
There are some of the Bible verses on assurance of salvation.
John 5:24 “Very truly I tell you, whoever hears my word and believes him who sent me has eternal life and will not be judged but has crossed over from death to life.
1 John 5:11 And this is the testimony: God has given us eternal life, and this life is in his Son. 12 Whoever has the Son has life; whoever does not have the Son of God does not have life. 13 I write these things to you who believe in the name of the Son of God so that you may know that you have eternal life.
John 3:16 For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life.
Eph 2:8 For it is by grace you have been saved, through faith—and this is not from yourselves, it is the gift of God— 9 not by works, so that no one can boast.
Titus 3:5 he saved us, not because of righteous things we had done, but because of his mercy. He saved us through the washingof rebirth and renewal by the Holy Spirit…
John 1:12 Yet to all who did receive him, to those who believed in his name, he gave the right to become children of God—
Romans 5:1 Therefore, since we have been justified through faith, we[a] have peace with God through our Lord Jesus Christ…