Our Salvation Is Eternal

And for this cause He is the Mediator of the New Testament, that by means of death, for the redemption of transgressions that were under the first testament, they which are called might receive the promise of eternal inheritance. Hebrews 9:15

Let’s read this verse from the Amplified Bible as well.

[Christ, the Messiah] is therefore the Negotiator and Mediator of an [entirely] new agreement (testament, covenant), so that those who are called and offered it may receive the fulfillment of the promised everlasting inheritance-since a death has taken place which rescues and delivers and redeems them from the transgressions committed under the [old] first agreement. Hebrews 9:15

Jesus has offered us and He has given us a New Covenant, a totally New Covenant which guarantees our everlasting salvation. The Old Covenant was a covenant of works, the Ten Commandments, the Law, do these things and don’t do those things. The New Covenant that Jesus has given us is a Covenant of faith. Jesus has offered and chosen us to be part of a covenant that allows Him to be the Author and Finisher of our faith.

Looking away [from all that will distract] to Jesus, Who is the Leader and the Source of our faith [giving the first incentive for our belief] and is also its Finisher [bringing it to maturity and perfection]. He, for the joy [of obtaining the prize] that was set before Him, endured the cross, despising and ignoring the shame, and is now seated at the right hand of the throne of God. Hebrews 12:2

So through the perfect power of our Lord and Savior we are now able to believe and completely trust in God. And since we now operate in the power of Jesus’ faith, our Father is able to accomplish His perfect works of righteousness through us.

Now to Him Who, by (in consequence of) the [action of His] power that is at work within us, is able to [carry out His purpose and] do superabundantly, far over and above all that we [dare] ask or think [infinitely beyond our highest prayers, desires, thoughts, hopes, or dreams]— Ephesians 3:20

This is what it really boils down to, Jesus gave our Father the ability to be in Control of our lives and since He is, Jesus gave us the ability to live free from the burdens and distresses that came from sin. We have received the fulfillment of the everlasting inheritance, which has redeemed us and delivered us from all sin.