Romans 5:10-11
For if while we were [God's] enemies, we were restored to fellowship with Him through the death of His Son, now that we have been restored, how much more [certainly] will we be saved [from condemnation] by His life!
Hebrews 9:12
And He did not enter [the heavenly Holy of Holies] by means of the blood of goats and calves but, by means of His own blood He entered the Holy of Holies [i.e., heaven] once for all time, [after] having obtained never ending redemption [i.e., salvation for us on the cross].
Hebrews 9:26
For then He would have had to suffer often since the creation of the world; but now at the end of the ages [i.e., the final period of world history] He has been revealed once [for all] to remove sin by sacrificing Himself.
Hebrews 10:10
By [Christ doing] what God wanted, we have been set aside for God through Jesus Christ offering His body once for all time.
Hebrews 10:14
For by one offering [i.e., the sacrifice of Himself], Christ has made perfect forever those people who are being set apart for God.
1 John 2:2
And He is the One who provides a "covering over" [or atonement] for our sins [See Heb. 2:17; Dan. 9:24; II Chron. 29:24], and not for ours [who are already Christians] only, but also for the sins of the people of the whole world.
1 John 4:10
Here is [the essence of] love: [It is] not that we loved God [first], but that He loved us [See Rom. 5:6-8] and sent His Son to be a "covering over" [i.e., atonement, 2:2] for our sins.
1 John 5:6
This Jesus is the one whose coming [to earth was introduced] by water [at His immersion. See Matt. 3:13] and [completed] by blood [at His crucifixion, John 19:17-37]. He did not come by the water only, but by the water and by the blood. And it is the Holy Spirit who gives testimony [at both of these events], because the Holy Spirit is [always] the truth. [See John 16:13].