Paul writes to the Hebrews and explains that in times of Old (the Old Testament) a priest would come into the Holy Tabernacle once a year to “atone” for the sins of the people. However, Christ came to Atone for the sins of the people with a far greater tabernacle, which was His own body, the very same body that He sacrificed and Atoned for us. In order for this Atonement to take effect, Jesus Christ had to die for the Testament. This is similar to “last will and testament”, which is only executed upon death of an individual. Because of this it was necessary for Jesus Christ to die for our sins. Those who follow Him; “…are called [to] receive the promise of eternal inheritance.” (Hebrews 9:15)
Paul explains the divine mission of Jesus Christ;
“…Christ is not entered into the holy places made with hands… but into heaven itself…. Christ was once offered to bear the sins of many; and unto them that look for him shall he appear the scone time without sin unto salvation.” (Hebrews 9:24;28) Therefore those who follow Jesus Christ will be given salvation when Jesus Christ returns for the Second time.