'Salvation' in the Bible

Are they not all spirits engaged in special service, sent on assignment for the sake of those who are going to inherit salvation?

how will we escape [if we] neglect so great a salvation which had [its] beginning [when it] was spoken through the Lord [and] was confirmed to us by those who heard,

For it was fitting for him for whom [are] all [things] and through whom [are] all [things] in bringing many sons to glory to perfect the originator of their salvation through sufferings.

and being perfected, he became the source of eternal salvation to all those who obey him,

But even if we are speaking in this way, dear friends, we are convinced of better [things] concerning you, and belonging to salvation.

thus also Christ, having been offered once in order to bear the sins of many, will appear for the second time without reference to sin to those who eagerly await him for salvation.