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.
Romans 3:25
God presented Jesus as the atoning sacrifice [for our sins] through [our] faith in His blood [i.e., His death on the cross]. This was in order to demonstrate His justice when, by using forbearance, He passed over people's sins in previous generations.
Romans 4:25
[This] Jesus was delivered up [to die] for our sins and was raised [from the dead] to make us right with God.
2 Corinthians 5:21
God considered Christ to be sinful on our behalf, even though He never sinned, so that we could be considered right with God through Him.
Hebrews 7:26-27
For Jesus was a very suitable head priest for us [i.e., He meets our needs very well], because He was holy, innocent, without [moral] corruption, separated from sinners and [exalted] above the heavens.
Hebrews 9:23-24
Therefore, it was necessary for the copies of the heavenly things [i.e., the Tabernacle, its furniture and utensils, etc.] to be [ceremonially] cleansed by these things [i.e., the blood of animal sacrifices], but the heavenly things themselves [i.e., the church, both on earth and in heaven] require better sacrifices than these [i.e., the sacrifice of Christ].
1 John 3:16
Here is how we can know what genuine love really is: It was [demonstrated by] Jesus laying down His life [on the cross] for us. And [because of that] we [too] should [be willing to] lay down our lives for [the sake of helping] our brothers [and sisters].