Those who have put their faith in the Lord Jesus Christ’s finished work on the cross are eternally secure. Once they believe that Christ died for all of their sins on the cross, was buried (He put away all those sins by the sacrifice of Himself (Heb. 9:26)), and rose again on the third day (1 Cor. 15:3-4), then they are made the righteousness of God in Christ (2 Cor. 5:21). They cannot lose their salvation. They have eternal security in the Lord Jesus Christ Himself.

We are

1. Baptized by the Holy Spirit into Christ (1 Cor. 12:13)
2. Complete in Him (Col. 2:10)
3. Indwelt by the Holy Spirit (Rom. 8:9)
4. Sealed by the Holy Spirit (Eph. 1:13-14)
   • The Holy Spirit is God’s earnest deposit to us. (2 Cor. 1:22; 5:5)
5. Promised by God unto eternal life (Titus 1:2)
6. Already seen in God’s eyes to be raised and made to sit together in the heavenly places in Christ Jesus. (Eph. 2:4-6)

Titus 1:2 In hope of eternal life, which God, that cannot lie, promised before the world began;

To sum up, as Titus 1:2  says concerning our hope (earnest expectation) of eternal life, it says that God cannot lie. For he has planned before the world began that every believer will have eternal life in Him (in Christ). This gift of eternal life is offered to all, but is only granted to those who believe (Rom. 3:22). The Lord Jesus Christ has paid for all of your sins by shedding His own blood upon the cross of Calvary, burying all of yours sins away forever, and rising again the third day. All you have to do is take God at His Word. Just simply believe that His Son, Jesus Christ, died for you and your sins, was buried, and rose again the third day! Once you believe, you will be made the righteousness of God in Christ (2 Cor. 5:21).