God’s message of salvation can be thought of as the way God has decided that we can have a hope of life after death.
Zacharias, the father of John the Baptiser says that forgiveness of sins is involved in salvation, when talking about John:
76 And you, child, will be called a prophet of the Most High;
for you will go before the face of the Lord to prepare his ways,
77 to give knowledge of salvation to his people by the remission of their sins,
The book of Hebrews tells us that Jesus died to put away our sins and that salvation will occur at the return of Jesus Christ:
26 or else he must have suffered often since the foundation of the world. But now once at the end of the ages, he has been revealed to put away sin by the sacrifice of himself. 27 Inasmuch as it is appointed for men to die once, and after this, judgement, 28 so Christ also, having been offered once to bear the sins of many, will appear a second time, without sin, to those who are eagerly waiting for him for salvation.
The apostle Paul tells Timothy that salvation comes from reading the Scriptures and having faith in the work of Jesus Christ:
15 From infancy, you have known the holy Scriptures which are able to make you wise for salvation through faith, which is in Christ Jesus.
The apostle Peter confirms that faith is involved in our salvation which we will see in the last time:
5 who by the power of God are guarded through faith for a salvation ready to be revealed in the last time.
The apostle James reminds us that our faith must be seen in action in our lives:
14 What good is it, my brothers, if a man says he has faith, but has no works? Can faith save him? 15 And if a brother or sister is naked and in lack of daily food, 16 and one of you tells them, “Go in peace. Be warmed and filled;” yet you didn’t give them the things the body needs, what good is it? 17 Even so faith, if it has no works, is dead in itself.
The apostle Paul tells Titus that salvation is available to all:
11 For the grace of God has appeared, bringing salvation to all men,