How do we know the doctrine of atonement is true?

The doctrine of atonement finds its basis in Scriptural teaching, particularly illustrated through the sacrificial system outlined in Leviticus. For those who sinned unintentionally, a ram was required as a guilt offering, symbolizing the need for a substitute to bear the penalty of sin. This practice not only foresaw the coming of the ultimate sacrifice – Jesus Christ, the Lamb of God – whose atoning death covers both known and unknown sins. This comprehensive atonement assures believers that there is no sin too great or too hidden that Christ's sacrifice cannot address, confirming the sufficiency of His work on the cross.